How to calculate your grade from a score
Divide points earned by points possible and multiply by 100: Grade % = (Earned ÷ Possible) × 100. 85 out of 100 is 85%, a B. Then match the percentage to your school's letter scale.
Test score to percentage and letter grade
Every possible score on tests marked out of 10, 15, 20 and 25, converted to a percentage and a letter grade on the standard US scale above. For any other total, use the calculator at the top.
| Score | Percent | Grade |
|---|---|---|
| 10 / 10 | 100% | A+ |
| 9 / 10 | 90% | A− |
| 8 / 10 | 80% | B− |
| 7 / 10 | 70% | C− |
| 6 / 10 | 60% | D |
| 5 / 10 | 50% | F |
| 4 / 10 | 40% | F |
| 3 / 10 | 30% | F |
| 2 / 10 | 20% | F |
| 1 / 10 | 10% | F |
| 0 / 10 | 0% | F |
| Score | Percent | Grade |
|---|---|---|
| 15 / 15 | 100% | A+ |
| 14 / 15 | 93.3% | A |
| 13 / 15 | 86.7% | B |
| 12 / 15 | 80% | B− |
| 11 / 15 | 73.3% | C |
| 10 / 15 | 66.7% | D |
| 9 / 15 | 60% | D |
| 8 / 15 | 53.3% | F |
| 7 / 15 | 46.7% | F |
| 6 / 15 | 40% | F |
| 5 / 15 | 33.3% | F |
| 4 / 15 | 26.7% | F |
| 3 / 15 | 20% | F |
| 2 / 15 | 13.3% | F |
| 1 / 15 | 6.7% | F |
| 0 / 15 | 0% | F |
| Score | Percent | Grade |
|---|---|---|
| 20 / 20 | 100% | A+ |
| 19 / 20 | 95% | A |
| 18 / 20 | 90% | A− |
| 17 / 20 | 85% | B |
| 16 / 20 | 80% | B− |
| 15 / 20 | 75% | C |
| 14 / 20 | 70% | C− |
| 13 / 20 | 65% | D |
| 12 / 20 | 60% | D |
| 11 / 20 | 55% | F |
| 10 / 20 | 50% | F |
| 9 / 20 | 45% | F |
| 8 / 20 | 40% | F |
| 7 / 20 | 35% | F |
| 6 / 20 | 30% | F |
| 5 / 20 | 25% | F |
| 4 / 20 | 20% | F |
| 3 / 20 | 15% | F |
| 2 / 20 | 10% | F |
| 1 / 20 | 5% | F |
| 0 / 20 | 0% | F |
| Score | Percent | Grade |
|---|---|---|
| 25 / 25 | 100% | A+ |
| 24 / 25 | 96% | A |
| 23 / 25 | 92% | A− |
| 22 / 25 | 88% | B+ |
| 21 / 25 | 84% | B |
| 20 / 25 | 80% | B− |
| 19 / 25 | 76% | C |
| 18 / 25 | 72% | C− |
| 17 / 25 | 68% | D |
| 16 / 25 | 64% | D |
| 15 / 25 | 60% | D |
| 14 / 25 | 56% | F |
| 13 / 25 | 52% | F |
| 12 / 25 | 48% | F |
| 11 / 25 | 44% | F |
| 10 / 25 | 40% | F |
| 9 / 25 | 36% | F |
| 8 / 25 | 32% | F |
| 7 / 25 | 28% | F |
| 6 / 25 | 24% | F |
| 5 / 25 | 20% | F |
| 4 / 25 | 16% | F |
| 3 / 25 | 12% | F |
| 2 / 25 | 8% | F |
| 1 / 25 | 4% | F |
| 0 / 25 | 0% | F |
What do I need on the final exam?
If your grade so far counts for part of the total and the final counts for the rest, the score you need on the final is: Needed = (Target − Current × (1 − weight)) ÷ weight, where weight is the final's share. This calculator does it for you — and tells you if your target is still possible (or already locked in).
Reading the result
- If the needed score is over 100%, that exact target isn't reachable — aim for the next grade down.
- If it's 0% or negative, you've already secured the grade no matter the final.
- Anything in between is your goal — now you know exactly what to study for.
What grade is 10 out of 15?
10 out of 15 is 66.7%, which is a D on the standard scale. Divide 10 by 15 and multiply by 100.
What is 17 out of 20 as a percentage?
17 out of 20 is 85% — a B.
What grade is 22 out of 25?
22 out of 25 is 88%, a B+. On a 25-point test each point is worth 4%.
What grade is 18 out of 25?
18 out of 25 is 72% — a C−. Two more points (20/25) would make it 80%, a B−.
Is 7 out of 10 a passing grade?
7 out of 10 is 70%, a C− — a pass at almost every school, since failing usually starts below 60%.
My class uses weighted categories — does this work?
This handles the common "current grade + final exam weight" setup. For many weighted categories, treat "current grade" as your average across everything except the final.
Does 89.5% round to an A?
Depends on your school — some round, some don't. If you're on a boundary, ask your teacher how they round.
Want your GPA too?
Once you have letter grades, use the GPA calculator to combine them across courses.