Three courses on the 4.5 scale
Input A+ with 3 credits, A with 3 credits, B+ with 3 credits.
Result GPA 4.00 on the 4.5 scale, 3.87 on 4.3 and 3.77 on 4.0.
Korean GPA Calculator (4.5 Scale)
Study & MathConvert Korean 4.5, 4.3 and 4.0 grades into one GPA, with course credits and instant scale conversion.
Your inputs
Result
GPA on your scale
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- GPA on the 4.5 scale —
- GPA on the 4.3 scale —
- GPA on the 4.0 scale —
- Total credits —
- Courses counted —
Change any input and the result updates instantly.
Formula and rules
- GPA = Σ(grade point × course credits) ÷ Σ(course credits)
- 4.5 scale: A+ 4.5, A 4.0, B+ 3.5, B 3.0, B- 2.5, C+ 2.0, C 1.5, C- 1.0, D+ 0.5, D 0, F 0
- 4.3 scale: A+ 4.3, A 4.0, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0
- 4.0 scale: A+ 4.0, A 4.0, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0
- Courses with 0 credits are ignored because they do not affect the weighted average
Worked examples
Different credit weights
Input A+ with 3 credits, A+ with 3 credits, B+ with 2 credits, B with 3 credits.
Result 43.0 grade points ÷ 11 credits = 3.91 on the 4.5 scale, 3.76 on 4.3 and 3.60 on 4.0.
FAQ
Is a 4.5 scale GPA simply divided by 1.125 to get a 4.0 GPA?
Not reliably. Letter grades map differently on each scale, so A+ is 4.5 on the 4.5 scale but only 4.0 on the 4.0 scale. This calculator converts grade by grade, then weights by credits, which is what admissions offices do.
Are Korean universities on a 4.5 or 4.3 scale?
Both exist. Most Korean universities use 4.5, while some professional and graduate programmes use 4.3. Check your transcript, because the same letter grade can carry a different point value at each school.
Do P/F or transfer courses count?
Usually not. Pass/fail courses carry no grade point, and transfer credits often appear without a grade. Leave them out unless your target university explicitly asks for them.
Disclaimer: Results follow the formula shown on this page and are for reference only. Real-world quantities vary with materials, technique and conditions, so allow a margin before ordering.