Grading Scale for 40 Questions
Percent and letter grade for every score on a 40-question test.
On a 40-question test, each question is worth 2.5 points. This chart uses a standard plus/minus scale (A- at 90%, B- at 80%, C- at 70% and D- at 60%), so "an A" here means A- or better. Students need 36 right for an A, 32 for a B, 28 for a C and 24 for a D. They can miss 4 questions and still get an A, or 8 and still get a B.
- A36+ rightA- or better
- B32+ rightB- or better
- C28+ rightC- or better
- D24+ rightD- or better
At a glance
- Every exact grade on the scale, from A down to F with each plus and minus, has a score that earns it.
- Of the 41 possible scores, 5 scores earn an A, 4 a B, 4 a C, 4 a D and 24 an F.
- The lowest score that isn't an F is 24 right (60%), a D-.
- Percentages are rounded to the nearest whole number, so 39 out of 40 shows as 98%.
Examples
- 39 out of 40 is 98% (A)
- 34 out of 40 is 85% (B)
- 29 out of 40 is 73% (C)
Customize this scale
Change the cutoffs, or add half points or bonus questions, in the free calculator.
Grade Table
| Right | Percentage | Grade |
|---|---|---|
| 40 | 100% | A |
| 39 | 98% | A |
| 38 | 95% | A |
| 37 | 93% | A- |
| 36 | 90% | A- |
| 35 | 88% | B+ |
| 34 | 85% | B |
| 33 | 83% | B |
| 32 | 80% | B- |
| 31 | 78% | C+ |
| 30 | 75% | C |
| 29 | 73% | C |
| 28 | 70% | C- |
| 27 | 68% | D+ |
| 26 | 65% | D |
| 25 | 63% | D |
| 24 | 60% | D- |
| 23 | 57% | F |
| 22 | 55% | F |
| 21 | 53% | F |
| 20 | 50% | F |
| 19 | 48% | F |
| 18 | 45% | F |
| 17 | 43% | F |
| 16 | 40% | F |
| 15 | 38% | F |
| 14 | 35% | F |
| 13 | 33% | F |
| 12 | 30% | F |
| 11 | 28% | F |
| 10 | 25% | F |
| 9 | 23% | F |
| 8 | 20% | F |
| 7 | 18% | F |
| 6 | 15% | F |
| 5 | 13% | F |
| 4 | 10% | F |
| 3 | 8% | F |
| 2 | 5% | F |
| 1 | 3% | F |
| 0 | 0% | F |