Korean GPA Scale Converter
Convert between the Korean 4.5 / 4.3 / 100-point scales and the US 4.0 scale. Results differ by method, so all three are shown side by side.
📝 Your grade
Enter the cumulative GPA (or percentage) exactly as printed on your transcript.
🎓 Converted results
US 4.0 equivalent (Band mapping)
3.61/ 4.0
Calculated with the "Letter-grade band mapping" method.
| Target scale | Proportional | Band mapping | GKS table |
|---|---|---|---|
| 4.5 scaleSource scale | 3.72 | 3.72 | 3.72 |
| 4.3 scale | 3.55 | 3.61 | 3.52 |
| US 4.0 | 3.31 | 3.61 | 3.22 |
| 100-pt | 82.7 | 87.2 | 84.4 |
Depending on the method, the US 4.0 result varies by up to 0.39.
- Percentage
- 87.2%
- Letter grade
- B+
- US letter
- B+
Reference thresholds
- Met
GKS scholarship eligibility
Meet one of: 2.91/4.5, 2.80/4.3, 2.64/4.0, or 80%
- Met
Typical US grad school minimum
Most master's programs state 3.0/4.0 as a documented minimum
- Met
Competitive admission range
Admitted students at top research programs average 3.5 or above
These are commonly quoted figures only. Actual cut-offs differ by school, program, and year.
⚠️ Do not submit this number as an official conversion
Every institution uses its own formula. US graduate schools, scholarship foundations, immigration offices, and credential evaluators such as WES all re-convert your transcript under their own rules, and the same record can differ by 0.1–0.4 grade points depending on the method. Always check the conversion rule stated in the program's application instructions, and report the figures printed on your official transcript.
📚 Course-by-course GPA (optional)
Enter credits and letter grades to compute a credit-weighted GPA. You can push the result straight into the converter above.
| Course | Credits | Grade | P/F | Remove |
|---|---|---|---|---|
Weighted GPA
4.00 / 4.5
Credits counted
8
Courses counted
3
Courses skipped
0
Letter-grade mapping
Anchors used by the band-mapping method. The 100-point value is the lower bound of each grade band.
| Korean grade | 4.5 | 4.3 | US grade | 100-point band |
|---|---|---|---|---|
| A+ | 4.5 | 4.3 | A (4.0) | 95~100 |
| A0 | 4.0 | 4.0 | A- (4.0) | 90~95 |
| B+ | 3.5 | 3.3 | B+ (3.3) | 85~90 |
| B0 | 3.0 | 3.0 | B (3.0) | 80~85 |
| C+ | 2.5 | 2.3 | C+ (2.3) | 75~80 |
| C0 | 2.0 | 2.0 | C (2.0) | 70~75 |
| D+ | 1.5 | 1.3 | D+ (1.3) | 65~70 |
| D0 | 1.0 | 1.0 | D (1.0) | 60~65 |
| F | 0.0 | 0.0 | F (0.0) | ~59 |
GKS conversion table
The grade conversion table published in the GKS (Global Korea Scholarship) application guidelines. Guidelines are revised annually — check the current announcement before applying.
| 100 | 4.5 | 4.3 | 4.0 |
|---|---|---|---|
| 100 | 4.50 | 4.30 | 4.00 |
| 95 | 4.25 | 4.05 | 3.75 |
| 90 | 4.00 | 3.80 | 3.50 |
| 85 | 3.75 | 3.55 | 3.25 |
| 80 | 3.50 | 3.30 | 3.00 |
| 75 | 3.25 | 3.05 | 2.75 |
| 70 | 3.00 | 2.80 | 2.50 |
| 65 | 2.75 | 2.55 | 2.25 |
| 60 | 2.50 | 2.30 | 2.00 |
Sources
- 🏫 Grade table: standard Korean university regulations (A+ 4.5 / A0 4.0 / B+ 3.5 …)
- 🏫 4.3 scale: A+ 4.3 / A0 4.0 / B+ 3.3 (used by Yonsei, KAIST and others)
- 🇺🇸 US 4.0: A 4.0 / A- 3.7 / B+ 3.3 / B 3.0 — A+ is usually not awarded extra weight
- 🎓 GKS conversion table and eligibility: GKS Application Guidelines
- 📄 WES iGPA: re-grades each course and takes a credit-weighted average, so it can differ from a single-number conversion
※ No figure here is an officially recognised conversion. The final rule is whatever the receiving institution publishes.
Guide · FAQ · bal.pe.kr
See the Guide for how the methods differ, the FAQ for common questions, and About for sources. Last updated 2026-08-24.