GPA Calculator
Add courses with credits and grade points to calculate your weighted GPA, weighted average and total credits. Based on the 4.0 scale. Runs locally.
Updated July 11, 2026
100% Private & Secure
This tool runs in your browser.
Your data is never uploaded or stored.
How It Works
GPA (Weighted Grade Point) = Sum(grade point x credits) / Sum(credits) -- only courses with grade point and credits
Weighted Average Score = Sum(score x credits) / Sum(credits) -- only courses with score and credits
Simple Average Score = Sum(score) / count -- only courses with score, no credit weighting needed
Total Credits = Sum of all credits entered
Different schools use different grade point scales. Entering grade points directly is the most universal approach.
Grade Point Reference (4.0 Scale)
How to use
- 1
Add courses with name, credits and grade point.
- 2
Click Calculate to see your GPA.
- 3
Add or remove courses as needed.
How it works
The credit weighting matters
A 4-credit course counts twice as much toward your GPA as a 2-credit course. That is why GPA is a weighted average, not a simple mean of your letter grades. The same letter in a heavier course pulls your GPA further — in either direction.
This is also why dropping a 1-credit elective you are acing has almost no effect, while bombing a 4-credit lab can drag down an otherwise strong semester.
- Standard 4.0 mapping: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0
- Many schools add 0.3 for + and subtract 0.3 for − (so A− = 3.7)
- Weighted scales give extra points for honors/AP/IB — a 5.0 GPA is only possible under those systems
How this is calculated
- Formula:
- GPA = Σ(grade point × credit hours) ÷ Σ(credit hours) — a credit-weighted average of grade points.
- Applies to:
- Standard U.S. 4.0 scale; many institutions use weighted (5.0), +/- modifiers, or different scales.
Grading scales, grade-point assignments, and weighting policies (e.g. honors, AP, IB) vary by institution and country — there is no single universal GPA. Results assume the unweighted 4.0 scale you configure in the tool and may not match your school's official calculation. Confirm your institution's grading policy before relying on any figure.