How Is Korean University GPA Calculated on the 4.5 Scale?
Most Korean universities grade on a 4.5 scale: A+ = 4.5, A0 = 4.0, B+ = 3.5, B0 = 3.0, and so on down to F = 0. You calculate GPA in two steps — look up each course's percentage grade in the band table to get its grade point, then take a credit-weighted average: GPA = sum of (grade point × credits) / total credits.
This page is only about Korea's own 4.5 scale: a table mapping percentage ranges to A+/A0/B+ grade points, a real worked example of the credit-weighted math, plus why it matters whether your school is on 4.5 or 4.3, and why the curve makes an A harder to get.
Percentage Grade to Korean 4.5-Scale Grade Point
| Korean grade | Percentage range | Korean 4.5 point |
|---|---|---|
| A+ | 95 – 100 | 4.5 |
| A0 | 90 – 94 | 4.0 |
| B+ | 85 – 89 | 3.5 |
| B0 | 80 – 84 | 3.0 |
| C+ | 75 – 79 | 2.5 |
| C0 | 70 – 74 | 2.0 |
| D+ | 65 – 69 | 1.5 |
| D0 | 60 – 64 | 1.0 |
| F | Below 60 | 0.0 |
This is the most common Korean 4.5-scale mapping (published by registrars such as Korea University and by Scholaro). Cutoffs vary slightly by school, and some universities use a 4.3 or 4.0 scale, so confirm the maximum on your own transcript before applying any conversion.
How Does the Korean 4.5 GPA Actually Work?
It's really just two steps. First, look up each course: whichever percentage band it lands in sets the grade point — 90-94 is 4.0, 85-89 is 3.5, 80-84 is 3.0, and only 95 and up is A+ = 4.5. Second, weight by credits: multiply each course's grade point by its credit hours, add them all up, and divide by total credits — that's your GPA. Higher-credit courses move your GPA more, which is why bombing a major course hurts a lot more than bombing an elective.
Don't scale it linearly. "Average / 100 × 4.5" only gets you a ballpark — Korean universities assign grade points by band, not by proportion, and the two can differ by a few tenths. To get it right, open the GPA calculator, switch to manual mode, pick "Korea," and enter your courses one by one on the 4.5 scale, then check it against this table.
Open the GPA calculator, pick Korea in manual mode, and compute on the 4.5 scale →One Transcript, Worked Through to a Korean GPA
Take four courses: first convert each score to a 4.5 point with the table above, then multiply by credits for the weighted points, and finally add them up and divide by total credits. Notice the average is 86.1, but the GPA is only 3.36 — that 79 course is worth just 2.5 points and drags the average down.
| Course | Score | Credits | 4.5 point | Point × credits |
|---|---|---|---|---|
| Calculus | 92 | 3 | 4.0 | 12.0 |
| Korean Language | 88 | 3 | 3.5 | 10.5 |
| Data Structures | 79 | 3 | 2.5 | 7.5 |
| Principles of Economics | 85 | 2 | 3.5 | 7.0 |
| Total / avg | 86.1 | 11 |
Courses graded P (Pass), S (Satisfactory), and the like carry no grade point and stay out of this formula; for a retake, most schools count the latest grade. Your registrar's rules are the final word.
4.5, 4.3, or 4.0? Confirm Which Scale Your School Uses
Korea has no single national GPA scale. So the first step isn't reading a table — it's confirming the maximum on your transcript. Get the maximum wrong and every grade point after it comes out skewed.
4.5 scale (most common)
This is what most Korean public and private universities use: A+ = 4.5, A0 = 4.0, B+ = 3.5 ... all the way down to F = 0. It's the main table on this page. If your transcript tops out at 4.5, you're in the right place.
4.3 scale (many top schools)
Seoul National (SNU), Yonsei, and Ewha — the more internationally oriented schools — often use a 4.3 scale where A+ = 4.3, frequently with intermediate steps like A- and B-. Don't apply the 4.5 point column to a 4.3 transcript.
4.0 scale (a few)
A few schools and grad programs use a 4.0 scale directly, and there the numbers already sit close to the US convention. Just verify the letters and percentage cutoffs; A+ usually caps at 4.0 here.
Why a High Korean GPA Is Harder to Earn
Lots of Korean universities grade on a curve (sangdae-pyeongga / relative grading): the number of students who can earn an A (including A+ and A0) in a course is hard-capped, usually to about the top 30%, with everyone else spread into B and C. In other words, even if the whole class scores above 90, only about a third get an A — your grade point depends not just on how well you did, but on where you rank in the class.
Two things follow. First, the same 4.0 is often harder to reach under a curve than in an absolute system. Second, don't beat yourself up over the number alone: spelling out your school's grading rules and how competitive your major is — in an application or resume — tells the story far better than the figure by itself.
Most Korean schools that grade on a curve cap the share of A/A+ grades in a course (each school sets its own limit, commonly around 30%) — the direct reason a high Korean GPA is scarce.
What Each GPA Band Means on the Korean 4.5 Scale
Read the bands below on Korea's own 4.5 maximum. Because relative grading is so common, the same number usually carries more weight than it looks like.
4.0 - 4.5 (mostly A0/A+)
Top tier. Staying in the A band year after year under a curve is genuinely hard, so this range rarely becomes a weak spot — it holds up for grad applications, exchange, and hiring alike, and frees you to focus on essays, research, and internships.
3.0 - 3.9 (mostly B, some A)
A solid band that keeps most doors open. Your GPA isn't a headline, but it's not dragging you down either; lean on test scores, recommendations, and project experience, and build a balanced list of targets.
Below 3.0 (mostly C)
On the low side — top programs get tough, but it's not the end. Offset it with language or standardized scores, research, or work experience, and it helps to explain the pressure of relative grading head-on in your essays.
Four Things People Most Often Get Wrong About Korean GPA
"Korean GPA is out of 4.0"
Most Korean universities are out of 4.5, where A+ = 4.5, not 4.0. A few top schools use 4.3 and a handful use 4.0. Check the maximum on your transcript first instead of assuming 4.0.
"A+ and A0 are the same top grade"
Not on the 4.5 scale. A+ = 4.5 and A0 = 4.0 — half a grade point apart. A+ usually needs 95 or above and is limited by the A quota under a curve, which makes it scarcer than A0.
"Score 90 and you're guaranteed an A"
Not in a curved course. The A band is capped, so if high scores cluster, a 90 can still land you a B+. Your grade point reflects your rank in the class, not an absolute score.
"GPA is just average / 100 × 4.5"
Nope. Korean universities assign grade points by percentage band (80-84 is 3.0, not 3.6), then weight by credits. Linear scaling is only a rough guess and can miss the real weighted GPA by a few tenths.
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Open the GPA calculator, switch to manual mode, pick "Korea," and compute course by course on the 4.5 scale — or see how other scales map to grade points.
Open the GPA calculatorFrequently asked questions
What is the maximum GPA at Korean universities?
Most Korean universities are out of 4.5, with A+ = 4.5 and A0 = 4.0. Several top schools — SNU, Yonsei, Ewha — use a 4.3 maximum, and some use 4.0. Confirm the top of the scale on your transcript before converting.
How do you calculate GPA on the Korean 4.5 scale?
Two steps: convert each course's percentage grade to a grade point by band (95-100 = 4.5, 90-94 = 4.0, 85-89 = 3.5 ... 60-64 = 1.0, below 60 = 0), then weight by credits — GPA = sum of (grade point × credits) / total credits.
Is A+ equal to 4.5?
On the Korean 4.5 scale, yes — A+ = 4.5 is the top grade point, and it usually takes 95 or above. Note it's half a point above A0 (= 4.0). If your school uses a 4.3 scale, A+ = 4.3 instead.
My school uses a 4.3 scale — can I still use this 4.5 table?
The letter-to-percentage logic is similar, but the "4.5 point" column doesn't apply to you — your maximum is 4.3, so A+ is 4.3, not 4.5, and 4.3 scales often add A-/B- steps. Use the 4.3 point table your registrar provides.
Side note: if you plan to use this Korean transcript to apply to the US, admissions offices or evaluators like WES/ECE will separately recast it onto the US 4.0 scale — that doesn't change the GPA you calculate on Korea's 4.5 scale. To see how the US 4.0 scale works, refer to the US 4.0 GPA conversion table.
Where these numbers come from
- Korea University Registrar, "Grade Overview / 4.5-scale conversion table" — the official 4.5-scale grade-point table (A+ 4.50 / A 4.00 / B+ 3.50 ... F 0.00)
- Scholaro GPA database, "Grading System in South Korea" — 4.5-scale letters and their percentage ranges (A+ 95-100, A0 90-94 ... F below 60)
- Seoul National University (SNU) and Yonsei academic materials — the 4.3-scale maximum (A+ = 4.3, with A-/B- steps) and relative-grading (sangdae-pyeongga) practice
- EP-Nuffic / Scholaro institutional profiles — how Korea's credit-weighted GPA is computed and how school maximums differ
Third-party mappings can change and cutoffs vary by school; for an official conversion, defer to your registrar or the evaluator your target institution specifies.