GPA Calculator
Calculate your college GPA with multiple grading scales. Add courses and get instant results.
About This Tool
The GPA Calculator computes your Grade Point Average across 4.5, 4.3, and 4.0 grading scales commonly used in Korean and international universities. Enter your courses, credit hours, and grades to instantly calculate your semester or cumulative GPA, helping with academic planning, scholarship applications, and graduate school admissions.
How to Use
- Select your university's grading scale (4.5, 4.3, or 4.0).
- Enter each course name, grade, and credit hours.
- Add more courses using the Add Course button.
- Optionally enable Major/General separation to see separate GPAs.
- Click Calculate to see your GPA.
Frequently Asked Questions
What is the difference between 4.5, 4.3, and 4.0 scales?
The 4.5 scale is used in most Korean universities where A+ = 4.5. The 4.3 scale is used internationally where A+ = 4.3. The 4.0 scale is used in some US universities where A+ and A both equal 4.0.
How is GPA calculated?
GPA = Sum of (Grade Points × Credit Hours) ÷ Total Credit Hours. For example, if you got A+(4.5) in a 3-credit course and B+(3.5) in a 2-credit course, your GPA = (4.5×3 + 3.5×2) / (3+2) = 20.5/5 = 4.1.
Does F count toward GPA?
Yes, F (0 points) is included in GPA calculation and significantly lowers your average. However, some universities allow grade retakes where the new grade replaces the F. Check your university's policy.
What GPA do I need for employment?
Many Korean companies require a minimum GPA of 3.0/4.5 for applications. Top companies and graduate schools often prefer 3.5+ on a 4.5 scale. However, requirements vary by company and industry.
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How It Works
GPA is calculated as a weighted average: GPA = Σ(grade points × credit hours) ÷ Σ(credit hours). Each letter grade maps to a numeric value that depends on the grading scale.
On a 4.5 scale (common in Korean universities): A+ = 4.5, A0 = 4.0, B+ = 3.5, B0 = 3.0, C+ = 2.5, C0 = 2.0, D+ = 1.5, D0 = 1.0, F = 0.0. On a 4.3 scale: A+ = 4.3, A0 = 4.0, A− = 3.7, B+ = 3.3, B0 = 3.0, B− = 2.7, and so on. On a 4.0 scale (US standard): A = 4.0, A− = 3.7, B+ = 3.3, B0 = 3.0, etc.
Pass/Fail (P/F) courses are excluded from GPA calculation — they contribute to earned credits but do not affect the grade point average. The calculator supports both semester GPA (single term) and cumulative GPA (all terms combined) modes.