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GPA calculator
Updated October 28, 2026 · Free, no sign-up
Add your classes with their letter grades and credits: you get your GPA on the 4.0 scale, unweighted and weighted. Add your current GPA to see your new cumulative GPA.
How GPA is calculated
Each letter grade has grade points. Multiply them by the class's credits, add everything up and divide by the total credits:
GPA = Σ (grade points × credits) ÷ Σ credits
Example: the classes above give (4.0 × 3 + 3.3 × 4 + 3.7 × 4 + 3.0 × 3) ÷ 14 = 3.50. With Biology as an AP class (+1.0), the weighted GPA is 3.79.
Letter grades to GPA points
| Letter grade | Grade points | Typical percentage |
|---|---|---|
| A+ | 4.0 | 97–100 |
| A | 4.0 | 93–96 |
| A- | 3.7 | 90–92 |
| B+ | 3.3 | 87–89 |
| B | 3.0 | 83–86 |
| B- | 2.7 | 80–82 |
| C+ | 2.3 | 77–79 |
| C | 2.0 | 73–76 |
| C- | 1.7 | 70–72 |
| D+ | 1.3 | 67–69 |
| D | 1.0 | 63–66 |
| D- | 0.7 | 60–62 |
| F | 0.0 | below 60 |
Percentage ranges vary between schools; this is the most common US scale.
Weighted GPA
Many high schools add points for harder classes so they count for more: commonly +0.5 for honors and +1.0 for AP and IB classes, which is how a weighted GPA can go above 4.0. Colleges often recalculate GPAs their own way, so report both if an application asks.
Questions
How do I calculate my GPA?
Turn each letter grade into grade points (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0, with plus and minus in between), multiply by the course's credits, add these up and divide by the total credits. Two 3-credit courses with an A and a B: (4 × 3 + 3 × 3) ÷ 6 = 3.5.
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses the 4.0 scale for every class. Weighted GPA gives harder classes extra points, commonly +0.5 for honors and +1.0 for AP or IB, so it can go above 4.0. Schools differ, so check how yours weights classes.
Is an A+ worth 4.0 or 4.3?
Most US colleges and many high schools count A+ as 4.0, the same as an A. Some use 4.3. This calculator uses 4.0, the most common rule.
How do I work out my cumulative GPA?
Enter your current cumulative GPA and the credits it covers in the calculator, then this semester's courses: it combines both, weighted by credits.
What is a good GPA?
A 3.0 is a B average and meets many college and scholarship minimums. 3.5 and above is strong, and competitive universities often see applicants with 3.7 to 4.0 unweighted.
Do pass/fail classes count?
Usually not: a pass adds credits to your total but no grade points, so leave pass/fail classes out of the calculation.
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