GPA Calculator
Calculate your GPA using subject grades or percentages and credit hours on a standard 4.0 scale.
GPA Grading System
This calculator uses a standard letter-grade scale on a 4.0 grade point system. Each grade maps to a grade point, and you can also enter a percentage to have the matching grade applied automatically.
| Grade | Grade Point | Percentage |
|---|---|---|
| A+ | 4.0 | 90–100% |
| A | 3.6 | 80–90% |
| B+ | 3.2 | 70–80% |
| B | 2.8 | 60–70% |
| C+ | 2.4 | 50–60% |
| C | 2.0 | 40–50% |
| D+ | 1.6 | 35–40% |
| D | 1.2 | 20–35% |
| NG | 0.0 | Below 20% |
How GPA is calculated
Your GPA is the credit-weighted average of your grade points. Multiply each subject's grade point by its credit hours, add them together, then divide by the total credit hours: GPA = Σ(grade point × credit) ÷ Σ(credit). Because credit hours act as weights, a high grade in a 4-credit subject moves your GPA more than the same grade in a 1-credit subject.
Example GPA calculation
For Mathematics (A, 3), English (B+, 3) and Science (A, 4): (3.6×3) + (3.2×3) + (3.6×4) = 10.8 + 9.6 + 14.4 = 34.8, divided by 10 credit hours = GPA 3.48.
Tips for an accurate result
- Enter every subject for the term, including ones with low credit hours — they still affect the average.
- Use the correct credit hours from your syllabus; guessing them changes the weighting.
- If your marksheet shows percentages, switch the input type to Percentage and let the tool map the grade for you.
- For a cumulative average across several terms, use the CGPA calculator.