GPA Calculator
Work out your grade point average in seconds: add your courses, credits and grades to get your semester GPA, then fold in your previous GPA and credits for a cumulative result. Includes a percentage-to-letter conversion mode. Everything runs in your browser.
🔒 100% private — files never leave your browser
Your courses
- Semester GPA
- —
- Total credits
- 0
- Grade breakdown
- —
Cumulative GPA (optional)
Add your previous GPA and its credit count to get your new cumulative average.
How to use the GPA Calculator
- 1 Add a row per course: credits and your grade (letter or percentage — switch modes anytime).
- 2 Read your semester GPA, total credits and the grade breakdown.
- 3 Optionally enter your previous GPA and credits to get your new cumulative GPA.
Frequently asked questions
Which GPA scale does it use?
The standard US 4.0 scale: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, D− = 0.7, F = 0. Some schools award 4.3 for A+ — check your registrar if that applies to you.
How is cumulative GPA calculated?
Cumulative GPA is the credit-weighted average across all terms: (previous GPA × previous credits + this term's quality points) ÷ total credits. Enter your prior GPA and credits and the tool does the math.
Can I enter percentage grades?
Yes. Switch to percentage mode and type scores like 87 — the tool converts them using a common scale (A− starts at 90, B− at 80, and so on). Grading bands vary by school, so verify against your syllabus.