Grading Scale for 15 Questions
Percent and letter grade for every score on a 15-question test.
On a 15-question test, each question is worth about 6.67 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 14 right for an A, 12 for a B, 11 for a C and 9 for a D. They can miss 1 question and still get an A, or 3 and still get a B.
- A14+ rightA- or better
- B12+ rightB- or better
- C11+ rightC- or better
- D9+ rightD- or better
At a glance
- Some exact grades never come up on this test (B, C+, C- and D), because each question moves the score about 6.67 points.
- Of the 16 possible scores, 2 scores earn an A, 2 a B, 1 a C, 2 a D and 9 an F.
- The lowest score that isn't an F is 9 right (60%), a D-.
- Percentages are rounded to the nearest whole number, so 14 out of 15 shows as 93%.
Examples
- 14 out of 15 is 93% (A-)
- 13 out of 15 is 87% (B+)
- 11 out of 15 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 |
|---|---|---|
| 15 | 100% | A |
| 14 | 93% | A- |
| 13 | 87% | B+ |
| 12 | 80% | B- |
| 11 | 73% | C |
| 10 | 67% | D+ |
| 9 | 60% | D- |
| 8 | 53% | F |
| 7 | 47% | F |
| 6 | 40% | F |
| 5 | 33% | F |
| 4 | 27% | F |
| 3 | 20% | F |
| 2 | 13% | F |
| 1 | 7% | F |
| 0 | 0% | F |