How college GPA is calculated
- Convert each letter grade to grade points (table below).
- Multiply by the course’s credit hours → quality points.
- Semester GPA = total quality points ÷ total credit hours.
- Cumulative GPA = (old GPA × old credits + new quality points) ÷ (old credits + new credits).
| Letter grade | Grade points |
|---|---|
| A / A+ | 4 |
| A− | 3.7 |
| B+ | 3.3 |
| B | 3 |
| B− | 2.7 |
| C+ | 2.3 |
| C | 2 |
| C− | 1.7 |
| D+ | 1.3 |
| D | 1 |
| D− | 0.7 |
| F | 0 |
Worked example (the default inputs): A (4.0 × 3) + B+ (3.3 × 4) + A− (3.7 × 3) + B (3.0 × 3) + C+ (2.3 × 3) = 52.2 quality points over 16 credits → semester GPA 3.26. With 45 earlier credits at 3.20 (144 points): (144 + 52.2) ÷ 61 = 3.22 cumulative.
Pass/fail and withdrawn (W) courses usually carry no grade points and are left out. Retaken courses are handled differently by each college.
FAQ
How do I calculate my cumulative GPA?
Multiply your current GPA by your completed credits to get quality points, add this semester’s quality points, and divide by the total credits.
What semester GPA do I need to raise my GPA?
Needed GPA = (target × total credits − current GPA × current credits) ÷ this semester’s credits. The calculator shows it when you enter a target.
Is an A+ worth 4.0 or 4.33?
Most US colleges cap A+ at 4.0, but some use 4.33. Use your college’s official scale.
Sources (Checked Nov 10, 2026): standard 4.0 grade-point scale and credit-hour weighting used by US college registrars; scales vary by institution. Estimate only, not an official transcript GPA.