398 tools
Tool directory
All tools by category
Browse all 398 free tools on bal.pe.kr, grouped into 12 categories — tax, labor, finance, health, parenting, developer utilities and more.
Real Estate & Tax
Guide · 42- Commercial Lease Renewal & Premium D-dayTrack your 10-year commercial lease renewal-right expiry D-day and the key-money recovery protection window.
- Comprehensive Real-Estate Tax CalculatorEstimate Korea's comprehensive real-estate tax from published prices, holdings, and deductions.
- Dual-Income DSR Calculator (Korea)Compare solo, joint, and spouse-only mortgage limits under Korea’s 2026 Stress DSR Phase 3.
- First-Time Homebuyer Special Loan SimulatorEligibility, limit, and rate comparison across 5 Korean policy mortgages (Didimdol, Newborn, Bogeumjari, etc.).
- Gift Tax CalculatorCalculate Korean gift tax with relationship deductions, 10-year aggregation, and surcharges.
- Gift vs. Sell vs. Hold (Korea Property Tax)Compare after-tax proceeds across sell, gift, and 10-year hold scenarios for Korean property.
- Housing Benefit CalculatorEstimate the actual housing benefit after rent ceilings and self-burden.
- Housing Savings Deduction OptimizerFind the optimal split of housing subscription savings between spouses for maximum refund.
- Interim Payment Loan CalculatorCalculate interim (jung-do-geum) loan limits and per-installment interest.
- Jeonse Deposit Insurance Eligibility CheckerReal-time check on HUG/SGI/HF Korean jeonse insurance eligibility with rejection reasons and fees.
- Jeonse Risk Score (Korea)Score the risk of a Korean jeonse deposit using debt ratio, auction recovery, and HUG/SGI insurance eligibility — in under a minute.
- Jeonse–Monthly Rent Conversion CalculatorConvert between deposit and monthly rent and check the statutory conversion-rate cap.
- Korea Crypto Capital-Gains Tax SaverEnter buy/sell price and quantity to instantly compute Korea's 2027 crypto capital-gains tax and how much you could save.
- Korea Inheritance Tax CalculatorKorean inheritance tax with spouse-share optimization (1st + 2nd estate).
- Korean Acquisition Tax Surcharge CheckerWizard-based Korean acquisition tax surcharge checker for home count, regulated area, temporary 2-home, gift, inheritance — 2026 rates.
- Korean Capital Gains Scenario Comparator4 scenarios compared: sell now, 1y later, 10y later, or gift. Korean capital gains tax with long-hold discount and 2026 multi-home surcharge.
- Korean Freelancer Tax CalculatorKorean freelancer tax calculator with VAT, income tax, insurance, pension.
- Korean Housing Subscription Score CalculatorCalculate Korean housing subscription points (84 max) from no-home period, dependents, and subscription account age.
- Korean Inheritance Forced-Share CalculatorCompute statutory shares, forced shares, and the claimable shortfall under the amended Korean inheritance law.
- Korean Jeonse Loan Limit ComparatorCompare Korean jeonse loan limits across HF, SGI, HUG, and Beotimmok with income, region, and age inputs.
- Korean Newlywed/Newborn Housing Loan Eligibility SimulatorCompare Korea's 4 newlywed/newborn home-loan programs (Didimdol, Newborn-Special, Hope Town, Beotimmok) with 2026 limits + Stress DSR Phase-3.
- Korean Overseas Stock Tax CalculatorKorean overseas stock capital gains (22%) and dividend (15.4%) tax calculator.
- Korean Real Estate Register GuideKorean real estate register guide with risk checklist and 30+ legal terms.
- Korean Rental Income Tax ComparisonKorean rental income tax: separate 14% vs comprehensive with deemed rent.
- KR FX Rate Effective ComparatorCompare Korean FX rates across banks, exchanges, travel wallets, and cards in one view.
- Lease Reporting Penalty CheckerCheck lease reporting obligation and late-filing penalties in Korea.
- Loan Prepayment Fee CalculatorCalculate loan prepayment penalties by amount, rate, and elapsed term.
- Loan Refinance Net-Savings CalculatorCompute the true net savings and break-even months of refinancing after prepayment fees and costs.
- Loan Repayment Method ComparisonCompare equal-payment vs equal-principal loan repayment methods.
- Long-term Repair Fund Refund CalculatorCalculate the long-term repair reserve refund owed when you move out.
- Marriage & Childbirth Gift Deduction CalculatorCombine the base and marriage/childbirth deductions to test the 300M KRW threshold.
- Monthly Dividend DRIP SimulatorSimulate how monthly dividends and assets compound with reinvestment, yield growth, and DRIP.
- Monthly-Rent Tax Credit CalculatorEstimate your monthly-rent tax credit and refund, including up to five years of amended claims.
- Mortgage Limit Checker (6·27 Rules)Estimate your Korean mortgage limit under the 6·27 lending rules.
- Newborn Special Loan Simulator 2026Simulate Korea’s 2026 newborn special mortgage eligibility and limits.
- Property Tax Estimator (1-Home Relief)Estimate Korean property tax with the single-home special rate.
- Second-Home Tax Exemption CheckerCheck whether a second home in a population-decline area keeps your single-home tax status.
- Stock/Crypto Averaging-Down CalculatorCompute average cost and P/L across buys, and back-solve the shares needed to hit a target average.
- Stressed DSR Loan Limit SimulatorKorean Stressed DSR (2025.7 Phase 3 + +3.0%p capital-area surcharge). Compare mortgage, jeonse, and credit loan caps.
- Temporary Two-Home Non-Taxable CheckerAuto-check Korea's 3-year disposal rule for temporary two-home tax exemption with D-Day counter.
- Youth Savings Switch ComparisonCompare switching between youth savings accounts by maturity payout.
- Youth Tomorrow Savings CalculatorCheck eligibility requirement by requirement and project the 3-year maturity amount.
Labor & Contracts
Guide · 20- 2027 Minimum Wage Compliance CheckerCheck 2027 Korean minimum-wage compliance including weekly holiday pay.
- 5+ Employee Threshold CheckerDetermine if your business meets Korea’s 5-employee labor-law threshold.
- Annual Leave Golden Holiday PlannerEnter your remaining leave days to find the best ways to chain holidays into long breaks with minimal leave.
- Certified Notice Generator (Korea)Auto-generate 9 types of Korean certified notices (wages, rent, deposit, termination, etc.).
- Employment Support Program CalculatorDetermine your support tier and estimate job-seeking allowance and add-ons.
- Fixed-Wage Contract Validator (Korea)Check if your fixed-wage employment contract is legally valid under Korean labor law. Auto-compute shortfall and generate a certified notice.
- IOU / Loan Agreement GeneratorGenerate a standard Korean IOU, validate the 20% legal interest cap, and print or download it.
- Korean 4-Insurance CalculatorCalculate Korean 4-insurance deductions with 2026 rates. Split worker/employer shares with a freelancer 3.3% side-by-side.
- Korean Employment Contract GeneratorGenerate 5 types of Korean standard employment contracts via a 10-minute wizard with real-time Labor Act violation warnings.
- Korean Lease Checklist GeneratorAuto-generate 50+ checks across 5 stages of Korean lease contracts: pre-signing, signing, move-in, residency, move-out.
- Korean Lease Termination Notice GeneratorAuto-generate Korean lease termination notices for 4 cases with effective-date calculation under Housing Lease Protection Act.
- Korean Payment Order Petition GeneratorAuto-generate Korean payment order petitions for loans, wages, deposits — ready for e-court filing.
- Korean Payslip GeneratorAuto-generate Korean payslips per Labor Standards Act §48 with 4-insurance calculations and printable A4 layout.
- Korean Year-End Tax Refund EstimatorEstimate your Korean year-end tax refund in 30 seconds with simple inputs — with a shareable card.
- Overtime/Night/Holiday Pay CalculatorCalculate overtime, night, and holiday work pay from your wage and hours, and check the 52-hour limit.
- Platform Worker Insurance CheckerCheck whether platform workers and freelancers are covered by Korean employment insurance.
- Privacy Policy GeneratorGenerate PIPA, GDPR, and CCPA-compliant privacy policies via wizard — bilingual output in HTML/MD/PDF.
- Take-Home Salary CalculatorCompute monthly take-home pay after four insurances and income tax from your annual salary.
- Unemployment Benefit Calculator (Korea)Estimate Korean unemployment benefit amount and payment days.
- Wage Claim Guarantee CalculatorEstimate Korean wage guarantee payouts under bankruptcy and simplified caps.
Wedding & Events
Guide · 8- Korean Doljanchi OG Image MakerKorean 1st birthday party OG image generator with KakaoTalk·Naver preview templates.
- Korean Wedding Budget SimulatorSimulate Korean wedding budgets across guest count, venue, region, and level — with SDM, venue, catering, gifts, honeymoon.
- Korean Wedding Calendar Add Link GeneratorKorean wedding add-to-calendar links for Google/Naver/Apple/Outlook + ICS + QR.
- Korean Wedding Gift Money AdvisorRecommend Korean wedding gift money amounts based on relationship, closeness, venue type, and attendance.
- Wedding Checklist D-day PlannerCount down to your wedding day with a reverse-scheduled checklist and ICS export.
- Wedding Invitation Message GeneratorGenerate wedding invitation messages by tone, season, and relationship.
- Wedding Invitation OG Preview GeneratorPreview KakaoTalk/Facebook/X/LINE thumbnails and download OG images at 1200×630, 800×400, 1080×1080.
- Wedding Money QR GeneratorGenerate Toss payment QR and share text from bride/groom bank accounts. Weddings, baby showers, funerals.
Retirement & Finance
Guide · 11- Basic Pension Eligibility & Recognized Income CalculatorSeniors aged 65+ enter earnings, pensions, and assets to get the 2026 recognized income, single/couple eligibility, expected monthly payout, and disqualification reasons in a minute. Reflects couple and National Pension linkage reductions.
- Farmland Pension CalculatorCompare monthly payouts across five Korean farmland pension payout types.
- HF Reverse Mortgage CalculatorEstimate Korean HF reverse mortgage monthly payouts; compares lifetime / term / mixed plans.
- Korean FIRE Retirement CalculatorKorean FIRE calculator with ISA, pension savings, and National Pension simulation — retirement age and 100-year asset curve.
- Korean NPS Pension EstimatorCompare early / normal / delayed Korean NPS scenarios without NPS login, with lifetime totals.
- Korean Post-Retirement Health Insurance CalculatorCompare 3 scenarios of Korean post-retirement health insurance: employee, regional, and voluntary continuation — plus dependent eligibility.
- National Pension Premium Hike CalculatorEstimate your monthly pension premium increase from the 8-year rate hike.
- NPS vs FIRE Comparison SimulatorCompare lifetime National Pension payouts vs FIRE asset 4% withdrawals from year of birth, income, and savings — age 65–95 monthly cash flow, after-tax, and NPS-dependence ratio.
- Pension Savings / IRP Tax Credit CalculatorCalculate pension savings & IRP tax-credit refunds in Korea.
- Retirement Age 65 Applicability CheckerCheck when the raised retirement age (65) applies by birth year.
- Severance Pay & Retirement Income Tax CalculatorCompute statutory severance pay and retirement income tax to see your after-tax payout.
Developer & Digital Tools
Guide · 59- AGENTS.md GeneratorGenerate an AGENTS.md rules file for coding agents from your project settings.
- AI Content Copyright ChecklistPick your AI service, plan, and use case to instantly see whether commercial use is allowed, conditional, or prohibited.
- AI Content Labeling Checker & WatermarkDiagnose AI content labeling duties and generate labels & watermarks.
- AI Content Production Cost CalculatorTotal per-piece cost for Shorts, ads, lectures, podcasts, or blog posts across 26 frontier AI models.
- AI Detect Safe — False Positive CheckerPredict your essay false-positive risk across GPTZero, Originality, Turnitin, and Winston AI detectors — fully client-side, no humanizer.
- AI Model Use-Case MatcherPick your task, budget, and context needs to get the top 3 best-fit LLMs with reasoning.
- AI Service Price ComparatorCompare LLM token, image, video, TTS, and subscription costs side by side.
- AI Token CounterCompare token counts and 2026 pricing across GPT, Claude, Gemini, and Llama on one page. Includes Korean efficiency chart.
- Aspect Ratio CalculatorLock a ratio and enter one side to get the other, with GCD reduction and platform presets.
- Bulk Image WatermarkBatch-apply logo or text watermarks to many images and download as ZIP — all in your browser.
- CMYK·HEX·Pantone Color ConverterConvert between HEX, RGB, CMYK, HSL, and Pantone (approx) with print gamut warnings.
- CSV Flashcards (no login)Drag a CSV to get a shareable flashcard deck, no login. SM-2 spaced repetition.
- Diatonic Chord & Progression GeneratorPick a key and scale to get diatonic triads, sevenths, degrees, and progressions.
- Embedding Model & Vector Storage ComparatorCompare embedding models (OpenAI, Voyage, Cohere…) by dimension, price, MTEB, and vector storage cost.
- Excel Diff · Two-Sheet CompareCompare two XLSX/CSV files cell-by-cell in the browser. Color-coded add/remove/modify with export.
- EXIF RemoverStrip GPS, camera, and timestamp EXIF metadata fully in-browser. Map preview and ZIP download.
- Favicon Generator (Multi-Size ICO)Turn one image into multi-size ICO, PNGs, manifest, and HTML tags — all in the browser.
- GIF Platform Preset GuideCheck GIF spec requirements and upload meta warnings for each major platform.
- Guitar Chord TransposerTranspose a chord progression by semitones or capo and see the easiest shapes to play.
- HEIC Batch ConverterConvert iPhone HEIC to JPG/PNG/WebP fully in-browser. Naver/Tistory/KakaoTalk presets for Korean platforms.
- Image Table to Excel OCRImage table to Excel/CSV via client-side Korean tesseract.js OCR.
- JSON ↔ CSV ConverterConvert JSON and CSV both ways in the browser, with flattening, delimiters, and escaping.
- JSON ↔ YAML ConverterBidirectional JSON/YAML converter with comment preservation, key order retention, and error highlighting.
- K-pop Fanchant & BPM GuideGet K-pop fanchants, BPM, and lightstick patterns per song with a BPM metronome to practice.
- K-pop Live Worldwide Time ConverterConvert KST comeback/music-show/Weverse live times to 15 fan cities worldwide — weekday/date shift, countdown, ICS, auto DST.
- K-Webtoon Wait-for-Free D-day TrackerTrack when your next free webtoon episode unlocks with a live countdown across multiple titles.
- KakaoTalk & Naver OG PreviewPreview Open Graph tags across KakaoTalk, Naver, Facebook, X/Twitter in one view.
- KakaoTalk Chat AnalyzerAnalyze KakaoTalk exports locally — message counts, reply speed, time heatmap.
- KakaoTalk Profile DecoratorDecorate your KakaoTalk profile with Unicode fonts and special character frames.
- Korea Travel MBTI QuizFind your Korean Traveler Persona with 12 wacky situations from a Korea trip — in 14 languages.
- Korean Address English ConverterConvert Korean addresses to English romanization in reverse order for international shipping and documents.
- Korean AI Text CheckerCheck Korean text for AI-like patterns and low-quality risk signals locally.
- Korean Cron Expression TranslatorCron expression to Korean natural language with next-10 runs and 20 presets.
- Korean Encoding Repair ToolAuto-detect and recover broken Korean text across EUC-KR, CP949, UTF-8 encodings.
- Korean HWP to PDF Converter GuideKorean HWP to PDF conversion with 3 methods, format preservation and CLI scripts.
- Korean Print Shop Quote CalculatorEstimate print costs for business cards, flyers, and posters by type, quantity, colors, and paper.
- Korean Saju ReadingKorean fortune telling with four-pillars saju: fortune, K-pop celebrity compatibility, and wealth — in 14 languages.
- Korean UTM Builder with Team PresetsBuild UTM links with Korean ad-channel presets, bulk-generate to CSV, and save team presets.
- Korean YouTube Best Upload TimeKorean YouTube audience peak-time heatmap by category with competitor analysis.
- Large-Text ReformatterReformat small text into senior-friendly large print, ready to print.
- LLM Context Window EffectivenessCompare advertised vs effective context windows to see which model fits your document.
- llms.txt GeneratorGenerate a standard llms.txt file for AI crawlers from your site info and section links.
- Markdown to Naver/Tistory Blog ConverterConvert ChatGPT markdown into Naver Blog / Tistory-ready formatting.
- MCP Server Config GeneratorGenerate MCP server config JSON for Claude Desktop, Cursor, and VS Code in the right format.
- Meeting Transcript FormatterTurn CLOVA/Zoom/subtitle transcripts into clean Markdown or Notion notes.
- Mini Link-in-Bio (Korean)Build a link-in-bio page with no signup and share it via QR and link — runs without a server.
- PII Masker for AI PromptsMask RRNs, cards, phones, and more in your browser before pasting text into an AI.
- Print Size Preset Generator40+ print size presets A/B series, business card, poster with mm·inch·px conversion.
- Prompt Vault — Personal Prompt LibrarySave, tag, search, and one-click copy your AI prompts — no signup, all data stays in your browser.
- Regex Visualizer (Korean)Visualize regular expressions as railroad diagrams with Korean explanations and live testing.
- SERP Snippet PreviewPreview how titles and descriptions render on Google, Naver, and mobile SERPs with character and pixel limit warnings.
- Short-form Hook Timing GuideShort-form hook patterns for Shorts, Reels, TikTok with 30 proven templates.
- SNS Image Resize & Aspect Ratio CheckerCheck your image against Instagram, YouTube, and more recommended sizes and resize it right in the browser.
- Subtitle Format Converter (SRT/VTT/SMI)Convert between SRT, VTT, SMI, and TXT in the browser, with sync offset and FPS retiming.
- Thumbnail A/B TesterCompare YouTube thumbnail candidates side by side and score them with a CTR checklist.
- WCAG Color Contrast CheckerCheck foreground/background contrast against WCAG AA/AAA and get passing-color suggestions.
- YouTube Chapter Timestamp FormatterConvert free-form timestamps into YouTube chapter format and validate the 5 YouTube rules in real time.
- YouTube Description Chapter & Hashtag ExtractorPaste a video description to extract chapter timestamps, hashtags, and keywords with chapter checks.
- YouTube Title OptimizerReal-time YouTube title analyzer: length, emojis, keywords, CTR score + desktop/mobile preview.
Life & Health
Guide · 156- 14-Day Mood Journal & GraphLog your mood in 30 seconds with emojis and tags to see a 14-day graph and mood correlations.
- 1RM Estimator (One-Rep Max Calculator)Estimate your one-rep max from weight and reps using five formulas, with a %1RM training weight chart.
- 4-7-8 & Box Breathing TimerVisual breath timer guiding 4-7-8 and box breathing to ease anxiety and improve sleep.
- 5th-Gen Health Insurance Switch ComparisonCompare switching to Korea’s 5th-gen health insurance by co-pay & premium.
- Adult ADHD ASRS Self-CheckScores the WHO/Harvard Adult ADHD Self-Report Scale (ASRS v1.1) — the 6-item screener plus 18 items — free and no-signup, with screening results, inattention/hyperactivity patterns and guidance on seeing a psychiatrist. Not a diagnosis.
- Air Fryer / Oven Time & Temp ConverterConvert oven recipes to air-fryer time and temperature.
- Air-Conditioning Sickness Self-CheckSelf-diagnose air-conditioning sickness risk from your symptoms.
- Airline Baggage Rule CheckerCheck free allowance, excess fees, and carry-on rules by airline and route.
- Ancestral Rite Jibang GeneratorGenerate the correct jibang (紙榜) text for Korean ancestral rites.
- Appliance Power Consumption & Bill CalculatorCalculate monthly kWh and progressive electricity bills for home appliances and compare their power use.
- Athens Insomnia Scale (AIS) TestScore the 8-item Athens Insomnia Scale and see whether insomnia is indicated.
- AUDIT-K Alcohol Use Self-CheckSelf-assess alcohol use risk with the AUDIT-K questionnaire.
- Auspicious Moving Day Finder (Korea)Find Korean auspicious moving days (son-eomneun-nal) for 2026–2027.
- Birth Flower Finder & Share CardFind your birth flower and its meaning for any day, with a share card.
- Blood Pressure Category CheckerClassify your blood pressure stage from systolic and diastolic values.
- Boiler Replacement ROI CalculatorEstimate gas savings and payback period when switching to a condensing boiler, including subsidies.
- BPM Tap CounterTap the spacebar to measure BPM in real time + built-in metronome + tempo classifications.
- Burnout Self-AssessmentCheck the three WHO ICD-11 burnout dimensions — emotional exhaustion, cynicism and reduced efficacy — with 18 items for a free, no-signup overall level and recovery tips. Non-proprietary MBI-style items. Not a diagnosis.
- Caffeine Half-Life Bedtime CalculatorEstimate caffeine left at bedtime by half-life decay and sleep risk.
- Carbon-Neutral Point Green-Life CalculatorCheck eco-actions like e-receipts and reusable cups to estimate your 2026 carbon-neutral point rewards.
- Cherry Blossom & Autumn Foliage ForecastPick a region to see predicted cherry blossom and autumn foliage peak dates as a countdown.
- Cholesterol / Dyslipidemia CheckerClassify dyslipidemia risk from your cholesterol and triglyceride levels.
- Chuseok Charye Table Cost CalculatorEstimate this year's Chuseok charye table cost by family size, scale, and vendor — with market vs. mart comparison.
- City Gas Bill CalculatorCalculate your city gas bill including base fee and VAT by region, purpose, and usage.
- Concert Seat View SimulatorPreview stage visibility scores by section and row for major Korean venues.
- Cooking Ingredient Substitute FinderSearch a missing ingredient to find substitutes with conversion ratios and tips.
- Cycle Irregularity & Perimenopause CheckerEnter your recent period dates to assess cycle irregularity and check for perimenopause signs.
- D-Day Countdown & Share CardCountdown to weddings, exams, K-pop comebacks with instant Instagram Story share card.
- Daily Time-Budget & ReflectionFill your day in 30-minute blocks to see where your 24 hours go with category breakdowns and weekly trends.
- Dementia Early Screening (SMCQ)Early dementia screening via the SMCQ subjective memory questionnaire.
- Discomfort & Heat Index CalculatorCompute discomfort and heat index from temperature and humidity, with risk tiers.
- eGFR / CKD Stage Kidney Function CheckerEstimate eGFR and classify chronic kidney disease (CKD) stage.
- Egg Boiling TimerGet exact boiling times by doneness, egg size, starting temperature, and altitude with a countdown.
- EITC & Child Tax Credit Eligibility SimulatorEnter household type, total income, assets and number of children to see EITC / child tax credit eligibility, estimated payouts, the 50% asset-reduction band and regular vs. late differential payments on one screen, no login.
- Elder Abuse Reporting Guide & Self-CheckSelf-assess six types of elder abuse with a checklist and get reporting hotlines and guidance.
- Electricity Bill SimulatorCalculate residential and business electricity bills by tier — KEPCO standard.
- Energy Voucher Eligibility CheckerCheck energy voucher eligibility and estimate your heating support amount.
- Energy-Efficient Appliance Rebate MatcherCheck whether your appliance qualifies for the 2026 energy-efficiency rebate and estimate the refund amount.
- English Reading Level & CSAT MappingFlesch-Kincaid, SMOG readability with CSAT grade, TOEIC, CEFR mapping.
- eSIM Country Price ComparisonCompare eSIM prices across Airalo, Holafly, Ubigi in 20+ countries by GB/day.
- Fall Risk Self-CheckA 22-item check that scores fall risk and returns tailored prevention tips.
- Fasting Blood Sugar CheckerInstantly classify fasting glucose into normal, prediabetes, or diabetes.
- Fatty Liver (MASLD) Index CheckerAssess fatty liver (MASLD) risk from liver enzymes and metabolic markers.
- Financial Income Tax Mode ComparatorCompare comprehensive vs separate taxation on your interest and dividend income around the 20M KRW threshold.
- Flu Vaccination Timing CalculatorFind your free national flu-shot start date and the recommended interval for a child’s second dose.
- Food Shelf-Life & Freezer Storage GuidePick a food to see its use-by date, fridge/freezer storage time, and whether it's still safe to eat.
- Foreign License Korea Conversion CheckerCheck mutual recognition, exemptions, and required documents for converting your foreign license in Korea. Available in English.
- Foreign Worker Flat vs Progressive Tax ComparatorCompare 19% flat rate vs progressive tax on your gross salary to find the lower tax. Available in English.
- GAD-7 Anxiety Self-AssessmentMeasure the past two weeks of anxiety on a 0–21 scale with 4 levels using the standard 7-item GAD-7. Professional-referral guidance at the 10-point cutoff plus crisis lines (109, 1577-0199). No sign-up, nothing sent to a server.
- GED Pass CheckerCheck GED pass status and subject exemptions from your scores.
- Geriatric Depression Scale (GDS-15)Walk through the 15-item short form one question at a time and get the interpretation.
- Gout Uric Acid Level CheckerAssess hyperuricemia and gout risk from your blood uric acid level.
- Gym & Pool Fee Deduction CalculatorEstimate the new 30% income deduction for gym and pool fees introduced in the 2026 tax reform.
- Hair Loss Stage Self-CheckSelf-check your hair loss stage with Norwood & Ludwig scales.
- Hanja ReaderDisplay Korean Hanja characters with hangul pronunciation and grade level. 1800+ common characters.
- HbA1c to Average Glucose ConverterConvert your HbA1c into estimated average glucose (eAG) with the ADAG formula and check your diabetes status instantly.
- Health Checkup Fasting Countdown TimerEnter your checkup time to back-calculate when to stop eating and drinking, with calendar reminders.
- Health Insurance Dependent Eligibility CheckerCheck whether you keep Korean health-insurance dependent status by income and assets, and estimate regional premiums if disqualified.
- Hearing Self-Check & Hearing Aid GuideSelf-check your hearing thresholds by frequency and get guidance on hearing loss and aids.
- Heating Bill Saving SimulatorEstimate your monthly heating bill and how much you save by lowering the thermostat or using away mode.
- High School Credit TrackerTrack progress toward the 192-credit high school graduation requirement.
- Hometown Love Donation Refund CalculatorEnter your donation to see the real benefit and refund rate combining tax credit and reward gifts.
- Household Carbon Footprint CalculatorMeasure your daily CO₂ from meals, commute, and energy — converted to tree equivalents.
- InBody Result InterpreterInterpret skeletal muscle, body fat, and visceral fat against standards.
- Instagram Line Break GeneratorPreserve line breaks and blank lines in Instagram, Threads, TikTok captions with invisible characters.
- Intermittent Fasting TimerTrack your 16:8, 18:6, 20:4, or OMAD fasting and eating windows in real time.
- ISA Tax-Saving Comparison CalculatorCompare tax savings and maturity payout of general vs youth ISA accounts versus a regular brokerage account.
- K-Drama OTT Airing CalendarTrack Netflix, Tving, and Wavve K-drama airing dates with D-day countdowns and ICS export.
- K-Pass Transit Refund CalculatorCalculate your K-Pass public transit refund and rate in Korea.
- K-pop Birthday Cafe Map & D-dayTrack bias birthday cafes & fan events with D-day, map, and perks.
- K-pop Comeback CalendarTrack K-pop comeback and music show schedules with D-day countdown and ICS export.
- K-pop Fan-Sign Win Probability SimulatorHypergeometric + 10,000-trial Monte Carlo simulation of K-pop fan-sign win probability by album count, applicants, winners, and popularity tier. 50%-threshold reverse calc + viral share card.
- K-Pop Goods Import Tax CalculatorCalculate total import cost including customs duty, VAT, and duty-free limits for K-pop goods. Available in English.
- K-Pop Idol MBTI & Birthday MatchFind K-pop idols with matching MBTI and birthday compatibility scores.
- K-pop Streaming Efficiency ScoreScore your Melon/Genie/Bugs/FLO streaming effort and diagnose the bottleneck.
- K-Skills Card Eligibility & Training Cost GuideCheck eligibility, support limits, and self-pay ratio for the National Skills Card based on employment and income.
- Kimchi-Making Cabbage & Ingredient CalculatorEnter family size or cabbage count to get exact amounts of cabbage, salt, chili, seasonings and estimated cost.
- Kiosk & Hospital QR Step-by-Step GuideLarge-font step-by-step guide to kiosks and hospital QR reservations for seniors.
- Korea Aircon Hourly Electricity CostHourly/daily/monthly/season aircon electricity cost calculator with KEPCO residential progressive tariff (3 tiers, Jul/Aug summer relaxation) and inverter vs fixed-speed duty cycles.
- Korea Trash-Bag Price FinderLook up local standard trash-bag prices across Korean districts by type and volume.
- Korea Visa Expiry & ARC Renewal D-dayD-day countdown for Korean visa expiry (D-2/D-10/E-7/F-2/F-4/F-5/F-6/H-2, 30 visa types) and ARC renewal. 4/3/1-month reminders + ICS calendar + EN/KO/JA/ZH.
- Korea World Flight & Time ZoneICN to 50 airports flight duration and time zone with jet-lag tips.
- Korean Age CalculatorConvert birthdate to Korean age, international age, and Chinese zodiac in one click.
- Korean Age Calculator (2023 Law)Korean age calculator under the 2023 unified-age law: international, counting, and year age — with CSV batch and printable PDF.
- Korean BMI CalculatorBMI calculator with Asia-Pacific classification and Korean pediatric growth charts (KCDC 2017).
- Korean Card Overseas Payment FX CalculatorEffective FX for Korean credit card overseas payment with Visa·MC·DCC fees.
- Korean Civil Service Exam D-day & Cutoff TrackerKorean civil service exam D-day and historical cutoff scores by rank and department.
- Korean Concert Ticketing D-day & Bot Prevention GuideLive D-day countdown + 5-platform anti-bot policies + cancel-ticket timing + D-7/D-3/D-1/D-day checklist for Korean concert ticketing.
- Korean CSAT D-day & Grade Cutoff TrackerKorean CSAT D-day with 5-year grade cutoffs and grade prediction.
- Korean Dietary Restriction CardGenerate polite Korean + English dining cards for allergies, halal, vegan, or religious diets.
- Korean Driver License Renewal D-dayKorean driver license renewal D-day with age-based cycle, fine alert, and ICS calendar.
- Korean Food Calorie SearchSearch 50+ Korean dishes for per-serving calories, macros, and sodium — with a daily basket summation.
- Korean GPA ConverterConvert between 4.5, 4.3, 100-point, and US 4.0 scales with three mapping methods.
- Korean Karaoke Key TransposerKorean karaoke key transposer with TJ·KY machine mapping and 100 K-pop presets.
- Korean Name GeneratorEnter your English name to get a Korean name with Hanja meaning and Five Elements reading.
- Korean New Year Money (Sebae) GuideSuggest the right amount of Korean New Year money by age and relation.
- Korean Passport Name RomanizerKorean passport romanization (MCST 2000 standard) + Hanja candidates.
- Korean Passport Visa Requirements CheckerCheck visa-free access, visa on arrival, stay duration, and passport requirements by country.
- Korean Pomodoro TimerA Pomodoro timer with Korean-context presets, ambient white noise, and session tracking.
- Korean Public Holidays CalendarKorean public and substitute holidays calendar with 'golden week' detection and ICS calendar export.
- Korean SAT English Vocabulary SearchKorean SAT English vocabulary by frequency rank, grade, example with flashcards.
- Korean Unicode Style GeneratorUnicode style generator for KakaoTalk·Instagram bio with 10+ decorative fonts.
- Korean Zodiac & Lunar ConverterKorean lunar calendar, Chinese zodiac, Western horoscope, seasons with age.
- Language Exam Score ConverterConvert TOEIC, TOEFL, IELTS, OPIc, and TOPIK scores using CEFR crosswalk.
- Long-Term Care Grade Self-CheckA 5-minute check of an aging parent’s daily living, cognition and behavior gives an estimated long-term care grade (1–5 or cognitive-support), benefits, copay and application steps for free. The actual grade is decided by the NHIS.
- Macro Diet PlannerGet your target calories, carb/protein/fat grams, and per-meal split from your body stats, activity level, and goal.
- Marriage Tax Credit Eligibility CheckerCheck eligibility for Korea’s marriage tax credit and estimated refund.
- Meeting Cost CalculatorCalculate the real cost of any meeting with participants, duration, and salaries.
- Menopause Symptom (Kupperman) Self-CheckScore menopause symptoms with the Kupperman index self-check.
- Metabolic Syndrome Self-Risk CheckerEnter 5 values to instantly check how many metabolic syndrome criteria you meet and your risk level.
- Military Discharge Lump Sum CalculatorAdd up rank-based pay and the soldier savings program to see your discharge lump sum.
- MVNO Switch Savings CalculatorCompare your current plan with MVNO plans to see monthly, yearly, and 5-year savings and breakeven.
- National Health Checkup Eligibility CheckerFind out which national health checkup and cancer screenings you are eligible for this year.
- National Scholarship Income Bracket CalculatorEstimate your recognized income, scholarship bracket (1–10), and expected award from household finances.
- National Technical Qualification Exam SchedulerFind Q-net written and practical exam dates, D-days, and your practical eligibility window.
- NPS Lump-Sum Refund Eligibility CheckerCheck your eligibility for a Korean National Pension lump-sum refund by nationality, visa, and contribution period.
- Osteoporosis Self-Assessment (OSTA)Enter weight and age to get your OSTA risk tier and whether a DXA scan is advised.
- Out-of-Pocket Maximum Refund EstimatorEnter your income tier and this year's covered hospital payments to see your estimated NHI refund.
- Ovulation & Fertile-Window CalculatorPredict ovulation, fertile window, and next period from your cycle, with a calendar and ICS.
- Panic Disorder Self-Test (PDSS)Screen panic disorder severity with the 7-item PDSS and get crisis-support guidance.
- Parenting Stress Self-CheckA free, no-signup self-check of parenting stress for parents of children aged 0–7 across four domains — parental role, interaction, child temperament and support resources — with coping tips and crisis safety nets. Not a diagnosis.
- PCL-5 PTSD Self-CheckSelf-assess PTSD symptoms across four clusters with the 20-item PCL-5 and a cutoff-based risk level.
- PHQ-9 Depression Self-AssessmentFree self-assessment of the past two weeks of depression using the validated 9-item PHQ-9. 0–27 score with 5-level interpretation plus a crisis safety net for the suicidal-ideation item (109, 1577-0199). No sign-up, nothing sent to a server.
- Pipe Freeze Prevention Water-Flow CalculatorEnter the low temperature and your home type to get a freeze-risk level and the recommended water trickle flow.
- PMS / PMDD Symptom Self-CheckSelf-check PMS and PMDD symptom severity before your period.
- Postpartum Depression Self-Check (EPDS)Score the 10-item Edinburgh scale with reverse items handled and see support contacts.
- Power of Attorney GeneratorGenerate a ready-to-print power of attorney by purpose type.
- Pregnancy Week CalculatorPregnancy week and due date calculator with LMP, Ovulation, and Ultrasound modes. Weekly fetal info and ICS prenatal visit calendar.
- Print Bleed & Margin CalculatorCalculate print bleed, safe margin, and 300dpi resolution for Korean print specs.
- Public-Interest Direct Payment Eligibility CheckerCheck your eligibility for Korea’s public-interest direct farm payment and estimate the amount.
- Race Pace PredictorRiegel race time predictor with VDOT training paces and printable wrist-band split card (km/mile).
- Recipe Serving ScalerScale recipe servings with unit conversions and oven-temperature adjustment. Korean and Western presets.
- Reverse D-day Goal SplitterReverse-split any goal into weekly/daily tasks with 5 presets and ICS export.
- Sambok Date CalculatorAuto-calculate Chobok, Jungbok, and Malbok dates with a D-day countdown.
- Samjae (Unlucky Years) CalculatorFind your three unlucky "samjae" years by Korean zodiac, with a timeline to the next cycle.
- Senior Driver License Aptitude Test D-DayEnter birth date and renewal date to compute the next aptitude-test expiry and D-Day on the 5-year (65+) or 3-year (75+) cycle. Includes dementia-screening and traffic-safety education guidance for 75+ and calendar (ICS) registration.
- Senior Job Program Eligibility MatcherMatch your age, pension status, and work ability to eligible senior job programs.
- Senior Medical Cost EstimatorEstimate national health insurance copayments by hospital tier and age (reference only).
- Senior Medication Schedule ICS GeneratorEnter medication names, dosing times, and before/after-meal to get a large-print fridge timetable and automatic calendar reminders (ICS) for Google, Apple, and Samsung at once. No sign-up, no app install.
- Sickness Benefit CalculatorCheck eligibility and estimate payments under Korea sickness benefit pilot programme.
- Sleep Cycle Calculator90-minute REM sleep cycles with 14-minute fall-asleep buffer to find optimal bedtime or wake time.
- Sleep Diary + ISI·PSQI Screening14-day sleep diary with ISI·PSQI to see your sleep-mood correlation.
- Social Anxiety LSAS Self-CheckSelf-assess social anxiety with the 24-item LSAS across fear and avoidance scales and cutoff-based levels.
- Solar ROI CalculatorCalculate solar payback period and 25-year savings with installation cost, capacity, region, and subsidies.
- Special Exam D-day TrackerTrack exam dates and D-days for special Korean exams like transfer, teacher, and patent attorney tests.
- Sunrise, Sunset & First-Light CalculatorCompute sunrise, sunset, and twilight by location and date, with New Year first-light spots and ICS alerts.
- Sunscreen Safe Exposure Time CalculatorCalculate safe sun-exposure time by skin type, UV index, and SPF.
- Supplement Timing PlannerPick your supplements and instantly see the best time slots and which combos to keep apart.
- TDEE & Macro CalculatorBMR via Mifflin-St Jeor or Katch-McArdle with activity multipliers and goal-based protein/fat/carb macros.
- Thyroid Function Test InterpreterCompare TSH, Free T4, and Free T3 against reference ranges to read hypo/hyperthyroid patterns.
- Voice-Phishing Instant Risk CheckerCheck the situation of a call or text to get a voice-phishing / smishing risk level, immediate steps and official report lines (112 · 1332 · m-safer) in large type within five seconds. Senior-friendly.
- Year-End Card Deduction OptimizerOptimize card spending to maximize Korea’s year-end tax deduction.
- Yebigun Training Pay & Remaining Period CalculatorDischarge date, designation, and reserve year to remaining trainings, yearly pay, and expiry countdown.
- Youth Leap Account Maturity Payout SimulatorEnter monthly contribution and personal income to see the 5-year maturity total (principal + government match + tax-free interest), effective yield vs. a regular savings account, and early-termination gain/loss on one screen. Reflects income-bracket matching caps.
- Youth Monthly Rent Subsidy Eligibility CheckerYouth aged 19–34 enter income, assets, parental income, deposit, and rent to instantly check eligibility across 5 monthly-rent subsidies (national + Seoul, Busan, Incheon, Gyeonggi, Daejeon). Includes monthly payout and application-deadline ICS.
- Zero-Waste & Refill Station MapFind zero-waste shops and refill stations across Korea by region, category, and items near you.
Automotive
Guide · 19- Antifreeze Freezing-Point CalculatorConvert antifreeze concentration and freezing point both ways.
- Car Lease vs. Long-Term Rental TCO ComparisonCompare total cost of ownership and monthly burden across lease, long-term rental, and cash purchase.
- Driving Penalty Point Suspension CheckerEnter your violations to check accumulated penalty points and your license suspension or revocation risk.
- Engine Oil Change D-day CalculatorCalculate your next engine oil change D-day and remaining distance from your last change and oil type.
- EV Excise Tax Phase-Out TimelineCompare vehicle taxes by purchase year as Korea phases out eco-vehicle excise exemptions.
- EV Subsidy Regional MatcherMatch your EV model and region to get the combined national + local subsidy and final purchase price.
- EV vs ICE Total Cost of OwnershipCompare lifetime TCO of EV vs gasoline car — purchase, fuel, tax, and maintenance.
- Ignition Interlock Eligibility & Cost CheckerCheck ignition interlock (IID) requirement, term, and estimated cost.
- Korea Traffic Fine ComparatorCompare Korea's administrative fine vs criminal fine plus penalty points by violation, zone, and vehicle.
- Korean Car Acquisition Tax CalculatorKorean car acquisition tax: 7% rate, education surcharge, local bond, EV discount.
- Korean Car Tax CalculatorCalculate annual Korean car tax with education surcharge, age discount, and yearly pre-payment discount.
- Korean EV Charging Cost CalculatorKorea EV charging cost across MoE, KEPCO, E-mart operators with estimated driving range.
- Korean Real-world Fuel Economy CalculatorReal-world Korean fuel economy with Opinet gasoline price and monthly cost forecast.
- Monsoon Car Check D-dayD-day to monsoon onset plus 8 self-check items (wipers, tires, A/C, battery, undercarriage, flood-prep) tailored to your car (model year, mileage, region).
- Multi-Child Toll Discount CalculatorCheck eligibility for the multi-child expressway toll discount and estimate annual savings.
- Tire Replacement DiagnosticDiagnose tire replacement urgency from the DOT code, tread depth, and odometer as a traffic light.
- Used Car Total Cost of Ownership CalculatorEstimate the real monthly cost of a used car including insurance, tax, fuel, and depreciation.
- Vehicle Inspection D-day & Penalty CheckerCheck your car inspection due date, D-day, and late penalties in Korea.
- Widmark BAC & Sober Time CalculatorEstimate BAC and hours until sober with the Widmark formula.
Pets
Guide · 6- Cat Litter Box CalculatorGet the n+1 litter box count, placement, and monthly litter use and cost.
- Dog & Cat Breed Match FinderAnswer 5 questions about your home and lifestyle to get your top 5 matching dog or cat breeds with match scores.
- Pet Food Portion CalculatorDog & cat daily calories and food grams via RER × life-stage factor = MER formula.
- Pet Human-Age ConverterConvert dog/cat age to human-age using size-tiered formulas; shows life stage and expected lifespan.
- Pet Toxic Food AlertPet food toxicity alert for chocolate, onion, grape — 20 items with symptom timeline.
- Pet Vaccination ScheduleDog & cat vaccination schedule based on WSAVA·AAFP guidelines with ICS calendar.
Shopping & Overseas
Guide · 7- Black Friday FX Customs CalculatorKorean Black Friday total cost calculator with FX, shipping, and customs duties.
- Bulk Parcel Tracking Link GeneratorPaste many tracking numbers to auto-detect carriers and generate tracking links in bulk.
- Korea Courier Fee ComparisonCompare parcel fees across Korea Post, CJ, and Hanjin by size, weight, region, and drop-off.
- Korean Food Delivery Fee ComparatorCompare Baemin, Coupang Eats, and Yogiyo side-by-side with 2026 fees — per-order net profit and monthly revenue at a glance.
- Korean Marketplace Fee MatrixA single-page matrix of 7 Korean marketplaces (Coupang, Naver Smart Store, 11st, Gmarket, Auction, WeMakePrice, TMON) × 50 categories — sales fee, payment fee, settlement cycle, and ad pricing. Enter category + price + cost to get the top-3 platforms by net profit.
- Korean Overseas Purchase Customs CalculatorCalculate Korean overseas-purchase customs duty, VAT, and fees in 5 seconds — with USD 150 duty-free threshold.
- Naver Smart Store Product Name GeneratorGenerate 30 SEO-optimized product name candidates for Naver Smart Store following 50-char limit, no-duplicate, and order rules.
Seller & Commerce
Guide · 38- 11st Fee & Profit Calculator11st category sales commission (7~13%), PG payment fees, Super Delivery, and SK Pay rewards calculator for sellers.
- Auction.co.kr Fee & Profit CalculatorAuction.co.kr per-item profit, margin, and break-even price using category fee 7~13%, Smile Delivery 1~3%, card 2.4%, VAT, and auction vs Buy-It-Now mode.
- Baemin Restaurant Profit Calculator2024.8 commission update reflected. Compute per-order net profit, monthly P&L, and break-even order count for Baemin restaurants.
- Business Closure Checklist & D-dayEnter your closure date, business type, staff and lease status to generate a chronological checklist — closure filing, final VAT return, income tax, social-insurance loss reports, severance and lease termination — with D-day and an ICS calendar.
- Cafe24 Self-Hosted Store Cost CalculatorCafe24 hosting plans, domain, PG fees (Toss 2.7% · KCP 3.1% · Inicis 3.3%), ad spend, and VAT to compute monthly operating cost, net profit, and break-even revenue.
- Card Sales VAT Credit CalculatorCompare the VAT credit for card sales before and after the 2026 reform.
- Cash Receipt Mandatory Issuance CheckerCheck whether your business must issue cash receipts and penalty risk.
- Corporation vs Sole Proprietor Tax SimulatorCompare effective tax of a corporation versus a sole proprietorship and find the incorporation breakeven.
- Coupang Ads CPC & ROAS CalculatorCoupang Ads (SP/SD/Live/Video) bid CPC, CVR, daily budget into ROAS, break-even ROAS, and BEP CPC — pairs with coupangfee margin and coupang-rocketgrowth-sim logistics.
- Coupang RocketGrowth SimulatorCoupang RocketGrowth monthly P&L with box inbound (600/1,800/3,500 KRW), outbound (1,800 KRW), storage (120/box/mo), and inventory turn — pairs with coupangfee, coupangads, and coupangsp.
- Coupang Seller Profit CalculatorCompute Coupang seller net profit with category fees, RocketGross, VAT, and service fees — pairs with coupangads ROAS and coupang-rocketgrowth-sim logistics calculators.
- Coupang Smart Store Price OptimizerKorean seller margin calculator for Coupang and Naver Smart Store with target margin.
- Delivery App Fee Burden CalculatorCalculate real take-home and fee burden rate for Baemin, Coupang Eats, and Yogiyo.
- Double-Entry Bookkeeping Duty CheckerCheck whether your business must keep double-entry books in Korea.
- e-Tax Invoice Mandatory Issuance CheckerCheck if you must issue electronic tax invoices in Korea.
- Faithful Tax Report Obligation CheckerCheck if you must file a faithful tax report by industry revenue thresholds.
- First-Hire Break-Even & Payroll Cost CalculatorGet the true monthly cost of one employee — wage, weekly holiday pay, employer social-insurance share, severance and meal allowance — plus the extra monthly revenue needed to break even, in one second. Reflects Durunuri support.
- Gmarket Fee & Profit CalculatorPer-item net profit, margin, and break-even price for Gmarket sellers using category sale fees, payment fees, Smart Delivery, and VAT.
- Group-Buy Settlement CalculatorSplit a group buy fairly — per-person totals with shipping allocation.
- Income Tax Expense Ratio Self-DiagnosticCompare simplified and standard expense ratios to estimate taxable income by business type and revenue.
- Interim Income Tax Prepayment ComparatorCompare paying the November tax notice as-is versus filing an estimate based on your first-half earnings.
- Kiosk ROI & Payback Period SimulatorEnter device cost, hourly wage, and labor hours saved to see monthly net savings, payback period, 3-year ROI, and buy-vs-rent on one screen. Includes weekly-holiday and social-insurance add-ons; vendor-neutral.
- Korea Self-Employed Health Insurance PredictorPredict November health insurance shock for Korean self-employed. Income/property/vehicle inputs, savings sliders (Mutual Aid, pension, expense), and dependent-eligibility traffic light.
- Menu Price Bulk AdjusterSet a raise rate and rounding rule to instantly generate a new menu and customer notice.
- Musinsa Seller Fee CalculatorMusinsa commission 14~30%, PG 2.5~3%, season promo share, returns, and VAT margin calculator for fashion sellers. Supports both seller and Standard wholesale models.
- Naver Smart Store Fee & Profit CalculatorPer-item net profit, margin, and break-even price for Naver Smart Store using NaverPay fee, shopping channel 2%, and VAT.
- Noranusan Mutual Aid Tax-Deduction SimulatorEnter business income and monthly contribution to see the deduction cap (6M/4M/2M won), marginal-rate tax savings, compounded accumulation, and recommended contribution at once. A tax-saving reference for the self-employed.
- Nutrition Label GeneratorEnter nutritional values to generate a nutrition facts label compliant with Korean MFDS standards.
- Olive Young Seller Fee CalculatorOlive Young consignment (25~35%) / direct / online (8~15%) / live (15~25%) fees with O!sale, new-product, member-special promo cost-sharing and VAT margin calculator for beauty sellers.
- Online Retail Registration Exemption CheckerCheck if you are exempt from Korean online-retail business registration.
- Restaurant Prime Cost DiagnosticCalculate your restaurant prime cost ratio and benchmark it against industry standards.
- Secondhand Selling Income Tax CheckerCheck if your secondhand sales count as taxable business income.
- SMB Policy Fund Eligibility MatcherFind eligible policy funds, loan limits, and interest rates based on your business history, revenue, and type.
- Store Key-Money Fair Price EstimatorEstimate a fair key-money range from sales, operating period, fit-out, industry, and location.
- Store Rent-to-Sales Ratio DiagnosticEnter industry, monthly sales, rent, deposit, and key money to compare your rent-to-sales ratio against the industry norm with a traffic-light verdict. Reverse-calculates break-even sales, key-money payback, and a fair rent ceiling.
- VAT Simplified vs. General Self-CheckEnter annual revenue, business type and input VAT to compare simplified vs. general taxation burden on one screen, with eligibility (KRW 104M threshold), the conversion tipping point and filing D-days (1/25 · 7/25).
- VAT Split CalculatorEnter supply value, VAT, or total and get the other two, formatted like a tax invoice.
- Workload-Sharing Subsidy CalculatorCalculate the employer subsidy for colleagues covering parental leave duties.
Parenting
Guide · 21- Advance Child Support CheckerCheck eligibility for advance child support after the income test was removed.
- Baby Milestone Checklist4-domain (motor, language, social, cognitive) milestone checklist by age, with standard-range comparison.
- Baby Sleep TrackerBaby sleep guide by age with nap count, wake windows, next-sleep time, and regression alerts.
- Child Adult-Height PredictorPredict a child's adult height from parents' heights, with growth-chart percentiles.
- Early Puberty Sign CheckerCompare observed signs against age-8 (girls) and age-9 (boys) clinical thresholds.
- Fertility Treatment Leave Pay CalculatorEstimate Korean fertility-treatment leave pay under the 27 Nov 2026 reform doubling paid days to four.
- Korea Family Benefits Integrated CalculatorAuto-generate 0~9 year-old Korean family benefits calendar (Parent Allowance, Child Allowance, First-Meeting Voucher, etc.) plus local subsidies from a child birth date. ICS export.
- Korea Parental-Leave Pay Simulator 2026Compute your 2026-reform monthly parental-leave benefit and total from your ordinary wage, leave length, and the 6+6 rule.
- Korean Baby Food Recipes by AgeRecommend Korean baby food recipes by age and allergy — with auto shopping list and allergen alerts.
- Korean Baby Growth PercentileKorean baby growth percentile by WHO/KCDC LMS with 0-24 month growth curve.
- Korean Baby Milestone ChecklistOne date of birth → auto checklists for 50 / 100 / 200 days, first birthday, age 2 / 3, plus ICS calendar export. Birth registration, first-meet voucher, doljanchi photo / table / gift items by date.
- Korean Diaper Size MatcherRecommend diaper sizes across 6~8 Korean brands by baby weight, age, and use type. Monthly consumption + border alerts.
- Korean Newborn Feeding CalculatorCalculate newborn feeding volume, daily total, and interval by weight, age, and feeding mode — with timer and ICS alert.
- Korean NIP Vaccination SchedulerAuto-generate Korean NIP 17 vaccine schedule up to age 13 from birth date. ICS calendar export.
- Multi-child Benefit CheckerFind multi-child benefits you qualify for by number of children.
- Newborn Prep ChecklistBuild a tailored newborn prep checklist by season and delivery type.
- Pediatric Fever Medication Dose CalculatorCalculate pediatric acetaminophen/ibuprofen dose by body weight.
- Reduced Working Hours Childcare Pay CalculatorEstimate your 2026 reduced-hours childcare benefit and net take-home pay from your wage and working hours.
- Short-Term Parental Leave Checker 2026Check eligibility and pay for Korea’s new 2026 short-term parental leave.
- Single-Parent Benefits Matcher (Korea)Match Korean single-parent benefits from age, children, and income (2026).
- Spouse Childbirth Leave Pay CalculatorCompute the 20-working-day return date and how pay splits between employer and insurance.
Games
Guide · 11- Gacha Pity Probability CalculatorGacha pity probability calculator with 15+ games and Monte Carlo simulation.
- Game Season & Launcher CalendarUnified calendar of season ends, updates, and events for LoL, Genshin, PUBG, FC Online, ZZZ.
- Gaming PC Spec CheckerPick your CPU, GPU, and RAM to see whether 20 popular games run smoothly with estimated FPS.
- Genshin/ZZZ Damage CalculatorEstimate expected damage and DPS from character stats and compare builds (community formulas).
- Go-Stop Score & Settlement CalculatorAuto-score Go-Stop with gwang, ribbons, pi, and go multipliers, and settle payouts for 2–3 players.
- Golf Handicap Calculator (WHS)Instantly get your WHS Handicap Index and Course Handicap from round scores, course rating, and slope.
- LoL MMR & Rank SimulatorCommunity-formula MMR estimator with games-to-target-rank simulation at 50/55/60% win rates.
- MapleStory EXP & Leveling CalculatorEXP table 1–300 with time-to-level calculator and hunting ground recommendations.
- Steam Friends Playtime ComparisonEnter playtimes to compare friends and games and find what to play together — no Steam login.
- Steam Refund Eligibility CheckerCheck Steam game refund eligibility: 14-day and 2-hour rule with edge cases (Early Access, Season Pass, DLC).
- Steam Regional Price Compare20 popular games × 10 countries Steam prices compared via daily FX-adjusted data with VPN warning.
Looking for something else? Check the roadmap or request it.