Easy Grade Calculator is an online grade and percentage calculator designed for accuracy and clarity in academic grading.This page explains how to convert a score X out of 40 into an exact percentage and its typical letter grade using a standard grading scale.
Instant Answer: X Out of 40 Grade and Percentage
X out of 40 as grade and percentage means you have scored marks (X) out of 40 point test and you want to know your percentage and grade.
To find percentage for your score you can use the formula and to check the grade see at the conversion table.
Exact Formula
The percentage calculation for a score out of 40 is:
Percentage = (Score ÷ 40) × 100
Example: 32 out of 40 → (32 ÷ 40) × 100 = 80% (B)
This formula converts your obtained marks out of the total marks into the exact percentage
This helps
- students to know about their performance
- teachers to evaluate the correct grading for the exams
Full Conversion Table (0–40 Marks)
U.S. grading scale:
A = 90–100 | B = 80–89 | C = 70–79 | D = 60–69 | F = below 60
| Score (X/40) | Percentage | Letter Grade |
|---|---|---|
| 40/40 | 100% | A |
| 39/40 | 97.5% | A |
| 38/40 | 95% | A |
| 37/40 | 92.5% | A |
| 36/40 | 90% | A |
| 35/40 | 87.5% | B |
| 34/40 | 85% | B |
| 33/40 | 82.5% | B |
| 32/40 | 80% | B |
| 31/40 | 77.5% | C |
| 30/40 | 75% | C |
| 29/40 | 72.5% | C |
| 28/40 | 70% | C |
| 27/40 | 67.5% | D |
| 26/40 | 65% | D |
| 25/40 | 62.5% | D |
| 24/40 | 60% | D |
| 23/40 | 57.5% | F |
| 22/40 | 55% | F |
| 21/40 | 52.5% | F |
| 20/40 | 50% | F |
| 19/40 | 47.5% | F |
| 18/40 | 45% | F |
| 17/40 | 42.5% | F |
| 16/40 | 40% | F |
| 15/40 | 37.5% | F |
| 14/40 | 35% | F |
| 13/40 | 32.5% | F |
| 12/40 | 30% | F |
| 11/40 | 27.5% | F |
| 10/40 | 25% | F |
| 9/40 | 22.5% | F |
| 8/40 | 20% | F |
| 7/40 | 17.5% | F |
| 6/40 | 15% | F |
| 5/40 | 12.5% | F |
| 4/40 | 10% | F |
| 3/40 | 7.5% | F |
| 2/40 | 5% | F |
| 1/40 | 2.5% | F |
| 0/40 | 0% | F |
⚠️ Letter grades may vary by school, country or grading policy.
Worked Examples (Real Scores)
Example 1: 38 out of 40
(38 ÷ 40) × 100 = 95% → A
Example 2: 31 out of 40
(31 ÷ 40) × 100 = 77.5% → C
Example 3: 26 out of 40
(26 ÷ 40) × 100 = 65% → D
Example 4: 16 out of 40
(16 ÷ 40) × 100 = 40% → F
Example 4: 35 out of 40
(35÷40) × 100 = 87.5%→B
Common Mistakes When Converting X Out of 40
Wrong vs Correct Outcomes
| Score (X/40) | Wrong % | Wrong Grade | Correct % | Correct Grade |
|---|---|---|---|---|
| 32/40 | 32% | F | 80% | B |
| 35/40 | 0.875% | F | 87.5% | B |
| 29/40 | 73% | C | 72.5% | C |
| 28/40 | 70% | C | 70% | C |
Why these are wrong (one-line each):
- Dividing by 100 ignores total marks 40
- Forgetting ×100 collapses percentages
- Bad rounding pushes scores across grade boundaries
- Assuming identical grading systems causes mislabeling
Raw calculators without understanding rounding and grade boundaries regularly produce incorrect academic conclusions.
Rounding Rules (Teachers Care About This)
- Round only if your school policy allows it (e.g 82.5% → 83%).
- Never round before converting marks to percentage.
- Some institutions round up and others enforce exact cutoffs.
Always confirm grading rules before finalizing a letter grade.
Author Note – Raza
Over the years, I have graded hundreds of assessments and personally dealt with student and parent disputes caused by rounding mistakes, incorrect total points or applying the wrong grading scale. The most common issue I see is assuming all grading systems work the same when they don’t. All the confusions will be wiped out if you use clear formulas and grading rules.
FAQs
What grade is 38 out of 40?
Grade A which is 95. This represents excellent performance.
What grade is 37 out of 40?
It equals 92.5% which is usually an A grade on most grading scales.
What grade is 36 out of 40?
Commonly an A- or A depending on the grading system.
What grade is 35 out of 40?
35 out of 40 equals 87.5% which is generally a B+ grade.
What grade is 34 out of 40?
A score of 34 out of 40 is 85%, typically a B letter grade.
What grade is 33 out of 40?
It is usually a B- or B depending on the grading scale.
What grade is 32 out of 40?
A score of 32 out of 40 is 80% commonly a B- grade.
What grade is 31 out of 40?
It is C+ grade and 77.5% in percentage.
What grade is 30 out of 40?
A score of 30 out of 40 is 75%, typically a C grade.
What grade is 29 out of 40?
29 out of 40 equals 72.5%, which is usually a C- or C grade.
What letter grade is 38 out of 40?
38 out of 40 is a 95%, which corresponds to an A letter grade.
What letter grade is 37 out of 40?
37 out of 40 equals 92.5%, typically an A.
What letter grade is 35 out of 40?
35 out of 40 is 87.5%, usually a B+.
What letter grade is 33 out of 40?
33 out of 40 equals 82.5%, generally a B- or B.
Is 33 out of 40 a good score?
Yes, 33 out of 40 is an 82.5%, which is considered a good score and usually falls in the B range.
How many marks are needed to pass out of 40?
Typically 24/40 (60%), but this varies by grading system.