Test Grade Calculator
Got your test back? Enter how many you got right out of the total and see your percentage and letter grade instantly — plus a chart of every possible score on the test, so you know exactly where the grade boundaries fall.
By Miikka · CalcBrew · Updated
17 out of 20 is
Percentage
85%
Letter grade
B
Wrong answers
3
Every score out of 20
| Score | Percentage | Letter |
|---|---|---|
| 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 |
📌 Letter grades use the most common US scale (A ≥ 93%, B ≥ 83%, C ≥ 73%, D ≥ 63%). Your teacher may use different cutoffs or a curve — check the syllabus.
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From one test to the whole class
A single test is one ingredient in your class grade. Once you know this score, the grade calculator combines all your assignments with their weights into your current class average, and the final grade calculator tells you what you still need on the final. At the semester level, the GPA calculator turns letter grades into your GPA.
Frequently asked questions
Cite this calculator
APA
CalcBrew. (2026). Test Grade Calculator. https://calcbrew.com/test-grade-calculatorMLA
“Test Grade Calculator.” CalcBrew, 2026, calcbrew.com/test-grade-calculator.Link to https://calcbrew.com/test-grade-calculator. Results are estimates; cite the underlying formula or data source for academic work.
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