GPA Calculator
Calculate your semester and cumulative GPA from letter grades and credit hours, on the 4.0 scale.
About the GPA Calculator
GPA is a credit-weighted average: each grade's points are multiplied by the course's credits, added up and divided by total credits. Most US schools use a 4.0 scale like the one below, but percentage cut-offs and plus/minus values vary (some give A+ a 4.3), so check your school's scale.
The formula
GPA = Σ(grade points × credits) ÷ Σ credits
Common 4.0 scale with pluses and minuses
| Letter | Percent (typical) | Points |
|---|---|---|
| A+ | 97–100 | 4 |
| A | 93–96 | 4 |
| A- | 90–92 | 3.7 |
| B+ | 87–89 | 3.3 |
| B | 83–86 | 3 |
| B- | 80–82 | 2.7 |
| C+ | 77–79 | 2.3 |
| C | 73–76 | 2 |
| C- | 70–72 | 1.7 |
| D+ | 67–69 | 1.3 |
| D | 65–66 | 1 |
| F | below 65 | 0 |
Worked example
Example: Semester GPA = 3.53
- Inputs: Courses (grade and credits, one per line): Biology A- 4; History B 3; Statistics A 3; Art B+ 2; Previous total credits: 0.
- Formula: GPA = Σ(grade points × credits) ÷ Σ credits
- Result: Semester GPA = 3.53
- Credits: 12
- Quality points: 42.4
Questions people ask
How do I add a new semester to my GPA?
Enter your previous cumulative GPA and credits, plus this term's courses.
Do pass/fail courses count?
Usually not; leave them out.