What is 18 out of 25 as a Grade?
18 out of 25 is 72% — a C letter grade.
If you scored 18 correct answers on a 25-question test, you answered 72% of the questions correctly and missed 7. Under the standard grading scale used by most U.S. schools and colleges, 72% falls in the C range, which is generally considered a passing grade but below average performance.
| Score | Percentage | Letter Grade |
|---|---|---|
| 18 out of 25 | 72% | C |
How Is 18/25 Calculated?
The calculation is straightforward:
18 ÷ 25 × 100 = 72%
You divide your score (18) by the total questions (25), then multiply by 100 to get your percentage. A 72% places you in the C grade range on the standard academic grading scale.
What Letter Grade Is 18 out of 25?
Under the standard U.S. grading scale, 18 out of 25 is a C grade (72%).
| Percentage Range | Letter Grade |
|---|---|
| 97% – 100% | A+ |
| 93% – 96.99% | A |
| 90% – 92.99% | A- |
| 87% – 89.99% | B+ |
| 83% – 86.99% | B |
| 80% – 82.99% | B- |
| 77% – 79.99% | C+ |
| 73% – 76.99% | C |
| 70% – 72.99% | C- |
| 60% – 69.99% | D |
| 0% – 59.99% | F |
At 72%, an 18/25 score lands at the very top of the C- range and the very bottom of the C range depending on your institution’s exact grading policy. Some schools place 72% as a C-, while others place it as a C. Always check your syllabus to confirm the exact thresholds your teacher or professor uses.
Complete 25-Question Test Grading Scale
Scored on a 25-question test? Here is every possible score with its percentage and letter grade:
| Correct Answers | Wrong Answers | Percentage | Letter Grade |
|---|---|---|---|
| 25 | 0 | 100% | A+ |
| 24 | 1 | 96% | A |
| 23 | 2 | 92% | A- |
| 22 | 3 | 88% | B+ |
| 21 | 4 | 84% | B |
| 20 | 5 | 80% | B- |
| 19 | 6 | 76% | C+ |
| 18 | 7 | 72% | C |
| 17 | 8 | 68% | D+ |
| 16 | 9 | 64% | D |
| 15 | 10 | 60% | D- |
| 14 | 11 | 56% | F |
| 13 | 12 | 52% | F |
| 12 | 13 | 48% | F |
Is 18 out of 25 a Good Grade?
Whether 18/25 is a good grade depends on the context:
For passing purposes: Yes — 72% is above the typical passing threshold of 60–70% at most schools. You passed the test.
For GPA purposes: A C grade (72%) contributes a 2.0 GPA value on a standard 4.0 scale. This is the minimum grade most colleges consider satisfactory academic progress. Multiple C grades can put your GPA below the 2.5–3.0 range many programs require.
For competitive courses: In courses where a B or higher is required to advance (such as prerequisite courses for medical, law, or engineering programs), a 72% would not meet the requirement.
Bottom line: 18/25 is a passing grade but leaves significant room for improvement. If your target is a B or higher, you would need at least 20 out of 25 (80%) on future tests.
How Many Questions Can You Get Wrong on a 25-Question Test?
This depends on your target grade:
| Target Grade | Minimum Correct | Maximum Wrong |
|---|---|---|
| A+ (97%) | 25 | 0 |
| A (93%) | 24 | 1 |
| A- (90%) | 23 | 2 |
| B+ (87%) | 22 | 3 |
| B (83%) | 21 | 4 |
| B- (80%) | 20 | 5 |
| C+ (77%) | 20 | 5 |
| C (73%) | 19 | 6 |
| Pass (70%) | 18 | 7 |
| Pass (60%) | 15 | 10 |
To pass with at least a 70%, you can miss a maximum of 7 questions out of 25 — which is exactly the 18/25 score.
Calculate Your Own Grade Instantly
Need to calculate a different score? Use our free Grade Calculator to instantly find the percentage and letter grade for any test score — just enter the total number of questions and how many you got wrong.
👉 Use the Free Grade Calculator →
It supports custom grading scales, half points, bonus points, and works for tests of any length from 1 to 500 questions.
Frequently Asked Questions
Is 18 out of 25 a passing grade? Yes. 18 out of 25 equals 72%, which is above the standard passing threshold of 60% at most U.S. schools. However, some colleges and programs require a minimum of 70% or higher to pass, in which case 72% still qualifies as passing.
What is 18/25 as a percentage? 18 divided by 25 equals 0.72, which as a percentage is 72%. To calculate it: 18 ÷ 25 × 100 = 72%.
What GPA is an 18 out of 25? A 72% (C grade) corresponds to a 2.0 GPA on the standard 4.0 scale. On a 5.0 weighted scale used for AP or Honors courses, it corresponds to a 3.0.
How many wrong answers is 18 out of 25? If you scored 18 out of 25, you got 7 questions wrong. 25 total minus 18 correct equals 7 incorrect answers.
Is 72% a C or C- grade? This depends on your school’s grading policy. On the standard scale where C spans 73–76.99%, a 72% is technically a C-. However, many schools define C as 70–79%, in which case 72% is a C. Always check your course syllabus for the exact grading boundaries.
What is 18 out of 25 as a letter grade with plus/minus? Under the plus/minus grading system, 72% falls at the top of the C- range (70–72.99%). It is just 1 point below a C (73–76.99%). One additional correct answer — scoring 19/25 (76%) — would bring you into solid C territory.
Related Grade Lookups
- 20 out of 25 as a Grade — 80% (B-)
- 17 out of 25 as a Grade — 68% (D+)
- 23 out of 25 as a Grade — 92% (A-)
- 18 out of 20 as a Grade — 90% (A-)
- 23 out of 30 as a grade