Life & Health Β· π Global
Korean Zodiac & Lunar Converter
Korean lunar calendar, Chinese zodiac, Western horoscope, seasons with age.
About this tool
Korean Zodiac & Lunar Converter (jodiac) takes a Gregorian birth date (1900β2100) and returns (1) the lunar date with leap-month indicator from the official KASI calendar, (2) the Chinese zodiac with Hanja / emoji and the corresponding 60-cycle stem-branch (κ°μ~κ³ν΄), (3) Western horoscope with element and dates, (4) the matching 24 solar term (μ μΆ / μ²λͺ / νμ§ / λμ§ β¦), (5) three Korean ages β counting / international / legal, (6) the AGTA monthly birthstone, and (7) a one-line yearly fortune. Results are copy-, URL-, and 1200Γ630 PNG-shareable, all client-side. A handy starting point for organizing family birthdays, social posts, and astrology content.
Use cases
Scenario 1
Family birthday roundup
Before a holiday gathering, convert solar β lunar dates for parents / siblings / kids in one shot and print zodiac / horoscope / season cards to share.
Scenario 2
Social-share content card
Creators generate 1200Γ630 zodiac / horoscope cards for themselves and guests and post them to Instagram / X.
Scenario 3
Lunar birthday lookup
For parents who celebrate by the lunar calendar, convert solar β lunar and produce an ICS that auto-enters every year on the family calendar.
Scenario 4
Zodiac compatibility / fortune content
Compare couple / friend zodiac compatibility and yearly fortunes in a single input as light entertainment.
Features
- Solar β lunar (1900β2100, leap-month aware, KASI source)
- Chinese zodiac + Hanja / emoji / 60-cycle stem-branch
- Western horoscope with element and date range
- Auto-match the 24 solar terms (true ecliptic 315Β° etc.)
- 3 Korean ages (counting / international / legal) + AGTA birthstone
- Copy text / share URL / 1200Γ630 PNG card
- Client-side; birth dates never leave the browser
Frequently asked
- Q. Why are solar and lunar different?
- A. Solar tracks Earth around the Sun (365.24 days); lunar tracks the Moon around Earth (29.5 days, ~354 days/year). Lunar inserts a leap month every 2β3 years to stay in sync. The tool uses the official KASI table.
- Q. How is the Chinese zodiac determined?
- A. Zodiac flips at Lunar New Year (or μ μΆ), not Jan 1. People born in early Januaryβearly February often belong to the previous zodiac year β the tool gets this right.
- Q. How are Korean ages defined?
- A. The tool returns three: international (Western), counting (1 at birth, +1 every Jan 1), and legal (unified to international after the 2023.06.28 law).
- Q. What are the 24 solar terms?
- A. The 24 agricultural seasons divided by every 15Β° of true solar ecliptic. Famous ones include μ μΆ (315Β°), νμ§ (90Β°), λμ§ (270Β°). The tool auto-tags the term for your birth date.
Sources / references
Related tools
π°π· Korea
Korean Food Calorie Search
Search 50+ Korean dishes for per-serving calories, macros, and sodium β with a daily basket summation.
- Korean food
- Kimchi stew
- MFDS nutrition
π Global
TDEE & Macro Calculator
BMR via Mifflin-St Jeor or Katch-McArdle with activity multipliers and goal-based protein/fat/carb macros.
- BMR
- TDEE
- Macros
π Global
Sleep Cycle Calculator
90-minute REM sleep cycles with 14-minute fall-asleep buffer to find optimal bedtime or wake time.
- 90-minute rule
- Sleep
- Wake time
π°π· Korea
Korean Age Calculator (2023 Law)
Korean age calculator under the 2023 unified-age law: international, counting, and year age β with CSV batch and printable PDF.
- Int'l age
- CSV batch
- Printable
π Global
Pregnancy Week Calculator
Pregnancy week and due date calculator with LMP, Ovulation, and Ultrasound modes. Weekly fetal info and ICS prenatal visit calendar.
- Gestational age
- Due date
- Fetal size
How we run it / disclaimer
This tool is advisory and does not constitute legal, tax, medical, or financial advice. All calculations and document generation run in your browser; inputs are never sent to a server. Ads follow Google AdSense policy and are kept separate from tool accuracy.