How GPA works
Your grade point average turns letter grades into points and averages them, giving more weight to courses with more credits. Each course's quality points are its grade points times its credits; GPA is the total quality points divided by total credits.
| Grade | Points | Grade | Points |
|---|---|---|---|
| A / A+ | 4.0 | C | 2.0 |
| A− | 3.7 | C− | 1.7 |
| B+ | 3.3 | D+ | 1.3 |
| B | 3.0 | D | 1.0 |
| B− | 2.7 | F | 0.0 |
| C+ | 2.3 |
Worked example
Calculus A (4 credits), History B+ (3), Chemistry B− (4), Art A− (2): 4.0×4 + 3.3×3 + 2.7×4 + 3.7×2 = 44.1 quality points over 13 credits, a 3.39 GPA.
If you already had a 3.2 GPA over 30 credits, your new cumulative GPA is (44.1 + 96) ÷ 43 = 3.26.
Different scales
Schools differ on plus and minus values, and many high schools use a weighted scale where honors and AP classes count up to 5.0. If yours does, type the grade points as numbers (for example AP Physics 4.7 1).
How this works
The page reads each line's last two values as the grade (a letter or a number of points) and the credits. It multiplies points by credits for each course, adds them up and divides by the total credits. If you enter a previous GPA and credits, it combines them into a cumulative GPA. Lines that cannot be read are reported.
Frequently asked
How do I calculate my GPA?
Multiply each course's grade points by its credits, add them up and divide by the total credits.
What is a 3.5 GPA in letters?
Between a B+ (3.3) and an A− (3.7) on the 4.0 scale.
How do I raise my cumulative GPA?
Enter your current GPA and credits with your expected grades to see the effect of this term.
What about weighted GPA?
Enter the weighted points as numbers, such as 5.0 for an A in an AP class.
Sources
Reviewed Oct 17, 2026 · test vectors fixtures/calculators/everyday/gpa-calculator/