United States GPA
& grading scale
Quick answer: The US uses letter grades A–F mapped to a 4.0 quality-point scale, usually tied to percentage bands (A = 90–100). A/4.0 is excellent, C/2.0 is average, and D (1.0, ~60%) is the minimum pass; F is failing.
US GPA
How the United States grading scale works
The US uses letter grades A–F mapped to a 4.0 quality-point scale, usually tied to percentage bands (A = 90–100). A/4.0 is excellent, C/2.0 is average, and D (1.0, ~60%) is the minimum pass; F is failing.
Grade scale
| Grade / range | Meaning (≈ US) |
|---|---|
| A (90–100) | Excellent — 4.0 |
| A- | 3.7 |
| B+ / B / B- (80–89) | 3.3 / 3.0 / 2.7 |
| C (70–79) | Average — 2.0 |
| D (60–69) | Passing — 1.0 |
| F (below 60) | Failing — 0.0 |
Formula
GPA = sum(grade points x credit hours) / sum(credit hours). Each letter maps to points: A=4.0, A-=3.7, B+=3.3, B=3.0, B-=2.7, C=2.0, D=1.0, F=0.0.
Worked example
A (4.0)x3cr + B (3.0)x4cr + C (2.0)x3cr = 30.0 quality points over 10 credits, so GPA = 30.0 / 10 = 3.00.
Using the calculator
Enter each course and its credit value to compute a credit-weighted US GPA, then download a PDF with the formula and source.