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University GPA calculator

POSTECH GPA Calculator

Calculate your semester GPA and updated CGPA using POSTECH's own grading scale, credit weighting, rounding rules, and CGPA formula — not a generic South Korea average.

Formula type

4.30 GPA scale

13 grades carry points, 5 do not, and results are rounded to 2 decimal places. Verified 2026-07-21.

GPAWorld

University GPA Calculator

Semester GPA

4.30

Updated CGPA

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GPA Credits

9

Rows

3

POSTECH

South Korea · 4.30 GPA scale

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Enter your current CGPA and completed credits to calculate your updated CGPA. Your semester GPA is shown from your courses below.

Semester Courses

9 credits entered

POSTECH grading at a glance

Grading scale
4.30 GPA scale
Scale range
0.0 to 4.3 — a higher number is a better grade
Grades that carry points
13 grades count toward the GPA, plus 5 administrative grades that do not
Best possible grade
A+ (4.3 points)
Lowest passing grade
D- (0.7 points) — the weakest grade that still earns credit
Failing grades
F — counted in the GPA but earning no credit
Semester GPA rounding
Rounded to the nearest 2 decimal places
Cumulative GPA rounding
Rounded to the nearest 2 decimal places
Credit hours per course
0.0 to 30.0, in steps of 1.0
Pass/fail courses
Supported (S) and excluded from the GPA
Zero-credit courses
Allowed, but they do not move the GPA
Repeated courses
Needs manual review
Percentage bands published
No — this university publishes grade points, not percentage cut-offs
Grading data last verified
2026-07-21

POSTECH grading scale

Every grade POSTECH awards, the points it carries, and whether it counts toward the GPA or earns credit. This is the table the calculator above runs on.

POSTECH grade points, GPA inclusion and credit rules
GradeMeaningPointsGPA countedCredit earned
A+A+4.3YesYes
A0A04.0YesYes
A-A-3.7YesYes
B+B+3.3YesYes
B0B03.0YesYes
B-B-2.7YesYes
C+C+2.3YesYes
C0C02.0YesYes
C-C-1.7YesYes
D+D+1.3YesYes
D0D01.0YesYes
D-D-0.7YesYes
FFailure0.0YesNo
SSatisfactoryExcludedNoYes
UUnsatisfactoryExcludedNoNo
WWithdrawalExcludedNoNo
IIncompleteExcludedNoNo
SASatisfactory AuditExcludedNoNo

How the POSTECH GPA formula works

POSTECH converts every graded course into quality points by multiplying the grade's point value by the course's credit hours. Your semester GPA is the total quality points divided by the total credit hours that count toward the GPA, and the result is rounded to the nearest 2 decimal places. Points run from 0.0 up to 4.3, so a higher average is a better result. The scale uses plus and minus grades, so there are 13 distinct point values rather than a handful of whole steps: A+ is worth 4.3 and A0 is worth 4.0.

What gets left out of the average

S, U, W, I, and SA carry no point value at POSTECH, so a course marked with one of them drops out of the division entirely — it changes neither the top nor the bottom of the fraction. S still earns credit toward your degree while staying out of the GPA, which is why your credit total can climb in a semester where your GPA barely moves. F works the other way: it earns no credit but is still counted in the average at 0.0 points, so a failed course pulls the average down while adding nothing to your progress.

How this semester rolls into your CGPA

POSTECH publishes a 4.3 grade-point scale; GPA calculation is represented as credit-weighted quality points for graded credits. In practice that means your existing CGPA is turned back into quality points by multiplying it by your completed credits, this semester's quality points are added on, and the total is divided by your new credit total. Both the semester and the cumulative figures are rounded to the nearest 2 decimal places. Repeat handling is not published as a rule this calculator can apply automatically, so retaken courses need to be checked against the current catalog.

How POSTECH compares with other South Korea universities

POSTECH shares the 4.30 GPA scale with Ewha Womans University, KAIST, Seoul National University and 3 others, while Hanyang University, Korea University, Pusan National University and 1 other grade on a different scale. Rounding is not uniform either: POSTECH has its cumulative average rounded to the nearest 2 decimal places, whereas Yonsei University does it differently. Repeated courses are handled differently again at Ewha Womans University, Korea University and 2 others.

A GPA only means something alongside the scale it was calculated on, which is why comparing raw numbers between institutions — even neighbouring ones — is unreliable. See the South Korea comparison table for every university covered there side by side.

Converting this GPA to a 4.0 scale

POSTECH does not grade on the US 4.0 scale. Its scale runs to 4.3 rather than 4.0, with 13 point values in use and D- as the lowest passing mark. There is no single correct formula for converting that into a 4.0 GPA, and GPAWorld deliberately does not publish one: every graduate school, employer and credential evaluator applies its own conversion table, and a number invented here could cost you an application. Calculate your GPA on this page using the real POSTECH scale, then let the institution you are applying to convert it with their table.

Worked examples

Each example below is run through the same engine the calculator uses, so the numbers show POSTECH's own rounding.

A typical graded semester

A student sitting at 3.10 after 60 completed credits takes 3 courses worth 3 credits each.

  • Core course3 credits × A+ (4.3 points)
  • Elective3 credits × A- (3.7 points)
  • Lab or seminar3 credits × B0 (3.0 points)

Semester GPA 3.67 · Updated CGPA 3.17

The semester total is 33 quality points over 9 counted credits. Because the cumulative average now spans 69 credits, one semester moves it only a little — this is why a CGPA gets harder to shift the further into a degree you are.

Adding a course graded S

The same student adds a fourth 3-credit course graded S (Satisfactory).

  • Core course3 credits × A+ (4.3 points)
  • Elective3 credits × A- (3.7 points)
  • Lab or seminar3 credits × B0 (3.0 points)
  • Satisfactory course3 credits × S (no grade points)

Semester GPA 3.67 · Updated CGPA 3.17

The semester GPA is unchanged at 3.67. S carries no grade points at POSTECH, so the course is removed from both sides of the division — even though the credit still counts toward the degree. Students often expect a fourth course to move the average and are surprised when it does not.

What one F costs

The same semester again, but the last course comes back as F (Failure) instead.

  • Core course3 credits × A+ (4.3 points)
  • Elective3 credits × A- (3.7 points)
  • Failed course3 credits × F (0.0 points)

Semester GPA 2.67 · Updated CGPA 3.04

The semester GPA slips from 3.67 to 2.67, and the cumulative average slips from 3.17 to 3.04. F is worth 0.0 points and earns no credit, so it weighs the average down while adding nothing to your degree progress.

What this semester does to your CGPA

A student with a 3.10 CGPA after 60 credits takes 4 courses worth 3 credits each (12 credits in total). Here is where that CGPA lands if every course comes back at the same grade — calculated with the POSTECH scale and rounding.

Projected POSTECH CGPA after a 12-credit semester
If every course isSemester GPANew CGPAMovement
A+ (4.3)4.303.30+0.20 (better)
A- (3.7)3.703.20+0.10 (better)
B0 (3.0)3.003.08−0.02 (worse)
C+ (2.3)2.302.97−0.13 (worse)
C- (1.7)1.702.87−0.23 (worse)

Your own starting CGPA and completed credits will differ — enter them in the calculator above for your real figure.

Common mistakes when calculating your POSTECH GPA

These are the places where the POSTECH rules differ from what most students assume, and where a hand calculation usually goes wrong.

  1. Counting S courses in the average

    These earn credit at POSTECH but carry no grade points, so they belong in your credit total and nowhere near the GPA division. Including them is one of the most common reasons a hand-calculated GPA comes out wrong.

  2. Dropping a failed course from the calculation

    F earns no credit toward the degree, but it is still counted in the GPA at 0.0 points. Leaving a failure out flatters the result.

  3. Guessing the plus/minus values

    At POSTECH, A+ is worth 4.3 and A0 is worth 4.0. Those steps differ between universities, so a value copied from another school's chart will quietly skew the whole average.

  4. Averaging the grades instead of weighting them

    A course worth twice the credits moves your GPA twice as much. Adding up your grade points and dividing by the number of courses ignores that weighting and is almost always wrong.

  5. Expecting a 0-credit course to move the number

    POSTECH allows them, but with no credit hours they contribute nothing to either side of the division.

  6. Handling a retake by guesswork

    Repeat handling is not published as a rule this calculator can apply automatically, so retaken courses need to be checked against the current catalog. Check the current catalog before assuming an old grade has left your record.

POSTECH GPA — frequently asked questions

What is a passing grade at POSTECH?

D- (0.7 points) is the weakest grade in the POSTECH table that still earns credit. Anything below it — F — is counted in your GPA but earns no credit toward the degree. Individual programmes can set a higher minimum for courses in your major, so check your programme handbook as well.

What is the best GPA you can get at POSTECH?

4.3 on the 4.30 GPA scale, which you reach by earning A+ (4.3 points) in every course that counts toward the GPA.

Does POSTECH round GPA up?

The cumulative average is rounded to the nearest 2 decimal places, and the semester average is rounded to the nearest 2 decimal places. That is ordinary rounding, so a result sitting exactly half a step along goes up.

Is this a generic South Korea GPA formula?

No. This page is generated from the grading configuration for POSTECH alone — its 13 point values, its standard rounding, and its own rules for pass/fail and repeated courses. Other universities in South Korea routinely use different point values or a different scale entirely, so the same grades can produce a different GPA elsewhere.

Do pass/fail courses affect my GPA?

No. S earns credit at POSTECH without carrying grade points, so it is excluded from the GPA division entirely. Your completed-credit total goes up while the average stays where it was.

Which grades are excluded from the POSTECH GPA?

S (Satisfactory), U (Unsatisfactory), W (Withdrawal), I (Incomplete), and SA (Satisfactory Audit) carry no grade points and are left out of the average. Of those, S still earn credit toward the degree.

What happens to my GPA if I repeat a course?

Repeat handling is not published as a rule this calculator can apply automatically, so retaken courses need to be checked against the current catalog.

How much does one semester change my cumulative GPA?

Your CGPA is weighted by every credit you have already completed, so a single semester moves it less the further along you are. Fifteen credits added to sixty already completed is a fifth of your record; the same fifteen added to a hundred and twenty is an eighth of it. Use the calculator at the top of this page with your real completed-credit total rather than estimating the movement.

Is this calculator official?

No. GPAWorld is an independent tool and is not affiliated with or endorsed by POSTECH. The grading data on this page was taken from POSTECH International Relations - Exchange Program: Grading Scale and last verified on 2026-07-21; every source is linked on this page so you can check it yourself. Your registrar's record is always the authority.

Notes on this university's data

Judgement calls and caveats recorded when this grading configuration was built from the official sources. They are published so you can see exactly what the calculator assumes.

  • POSTECH has its own official grading system and is not treated as a generic South Korea formula.
  • S/U, W, I, and SA are listed as special symbols and are excluded from GPA in this config.
  • Repeated-course handling is manual review because a clear public repeat replacement rule was not found.