This 100 question test grading chart shows the score for every number of questions wrong. On a 100-question test each question is worth 1%. On the 10-point scale a student can miss up to 10 and still get an A, and up to 40 and still pass with a D.
100 question test grading chart: every score
| Wrong | Right | Percent | 10-point scale | Plus/minus scale |
|---|---|---|---|---|
| 0 | 100 | 100% | A | A+ |
| 1 | 99 | 99% | A | A+ |
| 2 | 98 | 98% | A | A+ |
| 3 | 97 | 97% | A | A+ |
| 4 | 96 | 96% | A | A |
| 5 | 95 | 95% | A | A |
| 6 | 94 | 94% | A | A |
| 7 | 93 | 93% | A | A |
| 8 | 92 | 92% | A | A- |
| 9 | 91 | 91% | A | A- |
| 10 | 90 | 90% | A | A- |
| 11 | 89 | 89% | B | B+ |
| 12 | 88 | 88% | B | B+ |
| 13 | 87 | 87% | B | B+ |
| 14 | 86 | 86% | B | B |
| 15 | 85 | 85% | B | B |
| 16 | 84 | 84% | B | B |
| 17 | 83 | 83% | B | B |
| 18 | 82 | 82% | B | B- |
| 19 | 81 | 81% | B | B- |
| 20 | 80 | 80% | B | B- |
| 21 | 79 | 79% | C | C+ |
| 22 | 78 | 78% | C | C+ |
| 23 | 77 | 77% | C | C+ |
| 24 | 76 | 76% | C | C |
| 25 | 75 | 75% | C | C |
| 26 | 74 | 74% | C | C |
| 27 | 73 | 73% | C | C |
| 28 | 72 | 72% | C | C- |
| 29 | 71 | 71% | C | C- |
| 30 | 70 | 70% | C | C- |
| 31 | 69 | 69% | D | D+ |
| 32 | 68 | 68% | D | D+ |
| 33 | 67 | 67% | D | D+ |
| 34 | 66 | 66% | D | D |
| 35 | 65 | 65% | D | D |
| 36 | 64 | 64% | D | D |
| 37 | 63 | 63% | D | D |
| 38 | 62 | 62% | D | D- |
| 39 | 61 | 61% | D | D- |
| 40 | 60 | 60% | D | D- |
| 41 | 59 | 59% | F | F |
| 42 | 58 | 58% | F | F |
| 43 | 57 | 57% | F | F |
| 44 | 56 | 56% | F | F |
| 45 | 55 | 55% | F | F |
| 46 | 54 | 54% | F | F |
| 47 | 53 | 53% | F | F |
| 48 | 52 | 52% | F | F |
| 49 | 51 | 51% | F | F |
| 50 | 50 | 50% | F | F |
| 51 | 49 | 49% | F | F |
| 52 | 48 | 48% | F | F |
| 53 | 47 | 47% | F | F |
| 54 | 46 | 46% | F | F |
| 55 | 45 | 45% | F | F |
| 56 | 44 | 44% | F | F |
| 57 | 43 | 43% | F | F |
| 58 | 42 | 42% | F | F |
| 59 | 41 | 41% | F | F |
| 60 | 40 | 40% | F | F |
| 61 | 39 | 39% | F | F |
| 62 | 38 | 38% | F | F |
| 63 | 37 | 37% | F | F |
| 64 | 36 | 36% | F | F |
| 65 | 35 | 35% | F | F |
| 66 | 34 | 34% | F | F |
| 67 | 33 | 33% | F | F |
| 68 | 32 | 32% | F | F |
| 69 | 31 | 31% | F | F |
| 70 | 30 | 30% | F | F |
| 71 | 29 | 29% | F | F |
| 72 | 28 | 28% | F | F |
| 73 | 27 | 27% | F | F |
| 74 | 26 | 26% | F | F |
| 75 | 25 | 25% | F | F |
| 76 | 24 | 24% | F | F |
| 77 | 23 | 23% | F | F |
| 78 | 22 | 22% | F | F |
| 79 | 21 | 21% | F | F |
| 80 | 20 | 20% | F | F |
| 81 | 19 | 19% | F | F |
| 82 | 18 | 18% | F | F |
| 83 | 17 | 17% | F | F |
| 84 | 16 | 16% | F | F |
| 85 | 15 | 15% | F | F |
| 86 | 14 | 14% | F | F |
| 87 | 13 | 13% | F | F |
| 88 | 12 | 12% | F | F |
| 89 | 11 | 11% | F | F |
| 90 | 10 | 10% | F | F |
| 91 | 9 | 9% | F | F |
| 92 | 8 | 8% | F | F |
| 93 | 7 | 7% | F | F |
| 94 | 6 | 6% | F | F |
| 95 | 5 | 5% | F | F |
| 96 | 4 | 4% | F | F |
| 97 | 3 | 3% | F | F |
| 98 | 2 | 2% | F | F |
| 99 | 1 | 1% | F | F |
| 100 | 0 | 0% | F | F |
Percent rounded to one decimal. Letters use the exact percent, with no rounding up.
How many questions can you miss on a 100-question test?
The most questions wrong that still reach each letter:
| Scale | Letter | Starts at | Most wrong |
|---|---|---|---|
| 10-point | A | 90% | 10 |
| 10-point | B | 80% | 20 |
| 10-point | C | 70% | 30 |
| 10-point | D | 60% | 40 |
| Plus/minus | A+ | 97% | 3 |
| Plus/minus | A | 93% | 7 |
| Plus/minus | A- | 90% | 10 |
| Plus/minus | B+ | 87% | 13 |
| Plus/minus | B | 83% | 17 |
| Plus/minus | B- | 80% | 20 |
| Plus/minus | C+ | 77% | 23 |
| Plus/minus | C | 73% | 27 |
| Plus/minus | C- | 70% | 30 |
| Plus/minus | D+ | 67% | 33 |
| Plus/minus | D | 63% | 37 |
| Plus/minus | D- | 60% | 40 |
"none" means no whole score on this test reaches that letter.
How to grade a 100-question test
Percent = questions right ÷ 100 × 100
Made-up example: 15 wrong leaves 85 right. 85 ÷ 100 × 100 = 85%, a B on the 10-point scale and a B on the plus/minus scale.
Half credit: half a question is worth 0.5%. Made-up example: 10.5 wrong is 89.5%, a B on the 10-point scale. To add half or quarter rows to the chart, set Step in the Test Grade Calculator.
Which grading scale is this?
The US has no national grading scale, so check your school's. This chart shows two published examples. The 10-point scale (A from 90, B from 80, C from 70, D from 60) is the one Florida law sets for public school grades 6 to 12. The plus/minus scale is one published table, from the Johns Hopkins School of Nursing catalog, where an A+ starts at 97 and an A- at 90. Your school may round 89.5 up to an A or may not: see does 89.5 round up to 90. To use your own cut-offs, save them on the Grading Scale page and the Test Grade Calculator will offer them.
Print this chart
Open the 100-question chart to print. It fits on one page and opens on the 10-point scale; pick another scale there. For a printed letter grade poster, see printable grading scale charts.
100-question test FAQ
How many questions can you miss on a 100-question test and still get an A?
On the 10-point scale, 10. On the plus/minus scale an A- also starts at 90%, so the answer is the same for an A-.
How much is each question worth on a 100-question test?
1%, because 100 ÷ 100 is 1.
What is 85 out of 100 as a percent?
85%. Divide 85 by 100, then multiply by 100.
What is the lowest passing score on a 100-question test?
On the 10-point scale a D starts at 60%, so up to 40 wrong still passes. Some programs ask for a C or higher, so check yours.
Other test sizes
- 10-question grading chart
- 15-question grading chart
- 20-question grading chart
- 25-question grading chart
- 30-question grading chart
- 33-question grading chart
- 40-question grading chart
- 50-question grading chart
- 75-question grading chart
For any other size, from 1 to 200 questions or points, use the Test Grade Calculator. To combine test scores into a course grade, use the Grade Calculator.
Sources
- Chapter 1003 Section 437 - 2026 Florida Statutes - The Florida Senate (opened 3 November 2026)
- Grading Policy | Johns Hopkins University Academic Catalogue (opened 3 November 2026)
- Academic Standards for Progression | Johns Hopkins University Academic Catalogue (opened 3 November 2026)
- General University Grading System (opened 3 November 2026)
- Grading Scale | Registrar | University of the Incarnate Word (opened 3 November 2026)
Every chart on this page is an estimate on the scale shown, not your school's official result.