Easy Grader
Enter the number of questions and get an instant grading chart — the score and letter grade for every number of wrong answers.
| Wrong | Correct | Score | Grade |
|---|---|---|---|
| 0 | 20 | 100% | A+ |
| 1 | 19 | 95% | A |
| 2 | 18 | 90% | A- |
| 3 | 17 | 85% | B |
| 4 | 16 | 80% | B- |
| 5 | 15 | 75% | C |
| 6 | 14 | 70% | C- |
| 7 | 13 | 65% | D |
| 8 | 12 | 60% | D- |
| 9 | 11 | 55% | F |
| 10 | 10 | 50% | F |
| 11 | 9 | 45% | F |
| 12 | 8 | 40% | F |
| 13 | 7 | 35% | F |
| 14 | 6 | 30% | F |
| 15 | 5 | 25% | F |
| 16 | 4 | 20% | F |
| 17 | 3 | 15% | F |
| 18 | 2 | 10% | F |
| 19 | 1 | 5% | F |
| 20 | 0 | 0% | F |
How to use the grading chart
Set the number of questions on the test, then read down the chart: each row shows how many wrong answers produce a given percentage and letter grade. It's the fastest way to grade a stack of papers.
Frequently asked questions
How does the easy grader work?
Enter how many questions are on the test. The chart then shows, for each number of wrong answers, the percentage score and letter grade — so you can grade any paper at a glance.
How is the percentage calculated?
Score = (correct answers ÷ total questions) × 100. For example, 18 correct out of 20 is 90%.
What grade scale does it use?
A standard scale (A = 90–100, B = 80–89, C = 70–79, D = 60–69, F below 60). Your school's cutoffs may differ slightly.