Test score calculator
Enter the points you earned and the points possible. See the percent and the letter.
The formula
Percent = points earned / points possible x 100. If you got 42 out of 50, that is 42 / 50 x 100 = 84.00%, a B.
| Points missed | Out of 10 | Out of 20 | Out of 25 | Out of 50 | Out of 100 |
|---|---|---|---|---|---|
| 0 | 100% A+ | 100% A+ | 100% A+ | 100% A+ | 100% A+ |
| 1 | 90% A- | 95% A | 96% A | 98% A+ | 99% A+ |
| 2 | 80% B- | 90% A- | 92% A- | 96% A | 98% A+ |
| 3 | 70% C- | 85% B | 88% B+ | 94% A | 97% A+ |
| 4 | 60% D- | 80% B- | 84% B | 92% A- | 96% A |
| 5 | 50% F | 75% C | 80% B- | 90% A- | 95% A |
| 6 | 40% F | 70% C- | 76% C | 88% B+ | 94% A |
| 8 | 20% F | 60% D- | 68% D+ | 84% B | 92% A- |
| 10 | - | 50% F | 60% D- | 80% B- | 90% A- |
Letter grades
The letter uses a common 10-point scale: 90 and up is an A-, 80 is a B-, 70 is a C-, 60 is a D-. Plus and minus ranges split each band. Your teacher may use a different scale.
Next steps
To see what a test does to your class grade, use the grade calculator. To find what you need on a final, use the final grade calculator.
Questions people ask
How do I calculate a test score percentage?
Divide the points you earned by the total points possible and multiply by 100.
What is 45 out of 50?
90%, a A-.
What is 17 out of 20?
85%, a B.
Can the score be over 100%?
Yes, with extra credit. Enter points earned above the total.