Grade Point Calculator
Convert percentage to grade points and letter grades. Supports 4.0 and 10-point GPA scales.
About this calculator
Enter your subjects with percentage or marks, credits and see the grade points and letter grades, then get your GPA on the 4.0 or 10-point scale.
Handy when your marksheet shows percentages but your application asks for GPA.
How to use it
- Add each subject with marks and credits.
- Pick the scale.
- Press Calculate GPA.
Percentage to grade point
GPA = Σ(grade points × credits) ÷ Σ credits. On the US 4.0 scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, D = 1.0, F = 0. On the common Indian 10-point scale: O = 10, A+ = 9, A = 8, B+ = 7, B = 6, C = 5, P = 4 (the exact table varies by university). A 4-credit A counts twice as much as a 2-credit A, which is why credits matter.
A common mapping on the 4.0 scale: 90 to 100% = A (4.0), 80 to 89% = B (3.0), 70 to 79% = C (2.0), 60 to 69% = D (1.0), below 60% = F. Many Indian universities use 10-point tables instead, for example 90 to 100% = 10 (O), 80 to 89% = 9 (A+), 70 to 79% = 8 (A).
Worked example
Worked example (4.0 scale)
| Maths: A (4.0) × 4 credits | 16.0 |
| Physics: B+ (3.3) × 3 credits | 9.9 |
| English: A− (3.7) × 3 credits | 11.1 |
| Total | 37.0 points ÷ 10 credits = 3.70 GPA |
Calculated in your browser. Nothing is uploaded.
Tips and common mistakes
- Weight by credits; never average grades equally unless every course has the same credit.
- Check your university's own grade table: + and − grades differ.
- Repeated courses may be replaced or averaged, depending on policy.
- Pass/fail courses usually don't count in GPA.
- Cumulative GPA uses all terms; semester GPA is just one term.
Frequently asked questions
How is GPA calculated?
Multiply each course's grade points by its credits, add them, and divide by total credits.
What is a good GPA?
3.0 or higher is generally good in the US; 3.5+ is strong.
What is the difference between GPA and CGPA?
GPA is usually per semester, CGPA is cumulative over the whole programme.
Do all credits count equally?
No, a 4-credit course counts twice a 2-credit one.
Is the 10-point scale the same everywhere?
No, check your university's grade table.
Can I raise my GPA late in the programme?
Yes, but each new credit has less weight as the total grows.