A quick lookup for converting any percentage score into a letter grade on the standard scale.
| Percentage | Letter Grade |
|---|---|
| 90–100% | A |
| 80–89% | B |
| 70–79% | C |
| 60–69% | D |
| Below 60% | F |
This 10-point scale is the most common in U.S. schools, but some use a stricter scale (like 93%+ for an A) or add plus/minus grades (A-, B+, etc.). If you know how many questions you got wrong instead of a percentage, our Test Grade Calculator converts that instantly and shows the letter grade too.