In short: GPA (grade point average) is the credit-weighted average of your grade points: multiply each course’s grade points (A = 4.0, B = 3.0…) by its credits, add them up and divide by total credits.
About GPA Calculator
Most US colleges and many high schools report grades as a GPA on a 4.0 scale. Each letter grade has a point value — A is 4.0, B is 3.0, C is 2.0, D is 1.0 and F is 0 — and plus/minus grades sit in between (B+ is 3.3, A− is 3.7). Courses count in proportion to their credit hours, so a 4-credit course moves your GPA more than a 1-credit lab.
This calculator uses the most common plus/minus scale. For weighted high school GPAs, mark a course as Honors (+0.5) or AP/IB (+1.0). To see your new cumulative GPA, enter your previous GPA and the credits it was based on.
How to use GPA Calculator
- For each course, choose the grade, enter the credits and, if relevant, Honors or AP/IB.
- Add more rows with Add course.
- Optionally enter your previous GPA and credits for a cumulative result.
Examples
A (4 credits), B+ (3), A− (3), C (2) → (16 + 9.9 + 11.1 + 4) ÷ 12 = 3.42.
A previous 3.20 over 45 credits plus a 3.42 semester over 12 credits gives (144 + 41) ÷ 57 = 3.25.
Frequently asked questions
Does an A+ count as 4.3?
At most US colleges an A+ counts as 4.0; a few use 4.3. This calculator uses 4.0.
What about pass/fail courses?
Pass/fail and withdrawn courses usually do not affect GPA; leave them out.
What is a weighted GPA?
High schools may add 0.5 for honors and 1.0 for AP or IB courses, so a weighted GPA can exceed 4.0. Colleges often recalculate an unweighted GPA.
Is this my official GPA?
No. Your school’s registrar may use a different scale or rules for repeated courses. Check your transcript.
Updated November 2026 · Free, no signup · How we build and test tools