What grade is 31 out of 40?
A score of 31 out of 40 points converted to a percentage, letter grade, and GPA value.
Percentage
77.5%
Letter grade
GPA points
2.3
Satisfactory — meets expectations
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Percentage
77.5%
Letter
GPA points
2.3
Satisfactory — meets expectations
How 31 out of 40 is calculated
(31 ÷ 40) × 100 = 77.5%Divide the points you earned by the points possible, then multiply by 100. The unrounded result is 77.5000%, which displays as 77.5%. Letter grades are always compared against the unrounded value, so a borderline score is never nudged into a higher band by early rounding. Scoring 32 out of 40 (80.00%) would move this up to a B-.
31 out of 40 on other grading scales
Not every school uses the same cutoffs. The same 77.5% can be a different letter depending on the scale your teacher uses.
| Grading scale | Letter for 77.5% | Notes |
|---|---|---|
| Plus/minus (default) | C+ | Standard US scale with + and - modifiers. |
| 10-point scale | C | The most common US high school scale. |
| 7-point scale | C | Used by some districts and private schools. |
31 out of 40 outside the US
The pass mark moves a long way between countries — 50% in Australia and Canada, 40% for a UK third, and 33% in the Indian division system. Here is what 77.5% converts to in each.
| System | Grade for 77.5% | Notes |
|---|---|---|
| UK honours degree | First (1st) | First, 2:1, 2:2, Third — the standard UK university classification. |
| Australian university | Distinction | High Distinction through Fail, used by most Australian universities. |
| Canadian high school | B | The common provincial scale, where a pass starts at 50%. |
| Indian division system | Distinction | CBSE-style divisions, where a pass starts at 33%. |
| Irish Leaving Certificate | H3 | Higher-level grades H1 to H8, in 10-point bands from 30%. |
How many questions can you miss on a 40-question test?
| Grade | Minimum score | Questions you can miss |
|---|---|---|
| A (90%) | 36 out of 40 | 4 |
| B (80%) | 32 out of 40 | 8 |
| C (70%) | 28 out of 40 | 12 |
| D (60%) | 24 out of 40 | 16 |
See the full 40-question grading scale for every possible score.
Nearby scores
Work out your whole class grade
A single test is only part of your grade. To see how this score moves your overall grade, enter it alongside your other assignments and their weights.
Frequently Asked Questions
31 out of 40 is 77.5%. Divide 31 by 40 to get 0.7750, then multiply by 100.
77.5% is a C+ on the standard US plus/minus scale. On a plain 10-point scale it is C, and on a stricter 7-point scale it is C. Always check the scale printed on your syllabus.
Yes. 77.5% is at or above the 60% cutoff that most schools use for a passing D. Some programs require a 70% (C) or higher for a course to count toward a major.
77.5% is First (1st) on the UK honours degree scale, Distinction at an Australian university, B on the Canadian high school scale, and Distinction in the Indian division system. The pass mark differs in each — 50% in Australia and Canada, 40% in the UK, and 33% in India.
A C+ is worth 2.3 grade points on the standard unweighted 4.0 scale. A single test does not set your GPA on its own — it contributes according to its weight in the course.
You need 1 more point, which is 32 out of 40. That clears the 80% cutoff for a B-.
You missed 9 out of 40, which is 23% of the test.