GPA Calculator — Semester & Cumulative GPA
Add your courses with grades and credit hours. GradeLab computes your semester GPA instantly — and, if you give it your current cumulative GPA, your new projected cumulative. Everything runs in your browser; nothing is uploaded or tracked.
Cumulative GPA
Optional. Enter your standing before this term and we'll project your new cumulative GPA.
Frequently asked questions
How is GPA calculated?
GPA is a credit-weighted average: each course's grade points are multiplied by its credit hours, summed into "quality points", then divided by total credit hours. Example: A (4.0) in a 4-credit course plus B (3.0) in a 3-credit course → (16 + 9) ÷ 7 = 3.57.
What are the standard 4.0 grade points?
Common US 4.0 scale with plus/minus: A/A+ = 4.0, A− = 3.67, B+ = 3.33, B = 3.0, B− = 2.67, C+ = 2.33, C = 2.0, C− = 1.67, D+ = 1.33, D = 1.0, D− = 0.67, F = 0. Scales vary by school — always confirm your institution's table.
How do I calculate cumulative GPA?
Cumulative GPA = (old quality points + new quality points) ÷ (old credits + new credits). Your old quality points = current cumulative GPA × completed credits. Enter those two numbers above and the calculator projects your new cumulative automatically.
Does an F count toward GPA?
Yes. An F earns 0 grade points, but its credits still count in the denominator — so a failed course drags your GPA down. Some schools have grade-replacement policies for retaken courses; check yours.
Is this GPA calculator accurate?
The arithmetic is exact for the selected scale. The uncertainty is never the math — it's which scale your school uses. Confirm your institution's grade-point table before relying on the number for scholarships or honors cutoffs.