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GPA Calculator
Enter each course name (optional for the math), letter grade, and credits (or weight). RapidRatio uses GPA = Σ (grade point × credits) ÷ Σ credits in a decimal-first workspace—see why readable decimals matter.
Calculate GPA
Results
Unweighted 4.0 scale (reference)
| Grade | Point value |
|---|---|
| A+, 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 | 0.0 |
How this GPA formula works
Each course contributes grade point × credits to the numerator and credits to the denominator. Courses with no grade or no credits are skipped so you can keep spare rows open.
- Pick a mode — unweighted keeps the usual 4.0 cap; weighted adds one extra point per letter (except F) as a stand-in for many AP/IB policies.
- Add courses — name is optional; grade and positive credits are required for a row to count.
- Multiply and sum — we tally credit-weighted grade points and divide by total credits inside a high-precision decimal workspace so tiny rounding drift stays unlikely.
Limits and policy
Real schools differ on plus/minus cutoffs, pass/fail exclusions, repeated courses, and weighting rules. Use this tool for estimates and planning—not as proof of academic standing.
FAQ
How do you calculate GPA from credits?
Multiply each letter’s grade point by its credits, add those products, and divide by total credits. See the reference table above for unweighted points (A = 4.0, A− = 3.7, etc.).
What does weighted mean here?
We add one extra grade point on top of the unweighted table for every grade except F. Your counselor’s handbook may define weighting differently.
Can I share my inputs with someone else?
Yes—use Share Calculation after you calculate so the address bar holds a copyable link that reloads your rows and mode.