Out of 20 Grading Chart
Every possible score on a 20-point test — from 20/20 (100% A) down to 0/20 (0% F) — with its percentage, letter grade, and GPA equivalent on the standard 4.0 scale.
When is a 20-Point Test Used?
Twenty-question tests are a popular choice for homework quizzes, section tests, and standardised short assessments. Each question is worth exactly 5 percentage points, making the math straightforward: 18/20 = 90% (A), 16/20 = 80% (B).
The letter grades below use the standard US 10-point scale: A (90–100%), B (80–89%), C (70–79%), D (60–69%), F (below 60%). GPA values follow the 4.0 unweighted scale (A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0).
Complete Grading Chart — All 21 Scores
| Score | Percentage | Letter Grade | GPA | Wrong |
|---|---|---|---|---|
| 20/20 | 100% | A | 4.0 | 0 |
| 19/20 | 95% | A | 4.0 | 1 |
| 18/20 | 90% | A | 4.0 | 2 |
| 17/20 | 85% | B | 3.0 | 3 |
| 16/20 | 80% | B | 3.0 | 4 |
| 15/20 | 75% | C | 2.0 | 5 |
| 14/20 | 70% | C | 2.0 | 6 |
| 13/20 | 65% | D | 1.0 | 7 |
| 12/20 | 60% | D | 1.0 | 8 |
| 11/20 | 55% | F | 0.0 | 9 |
| 10/20 | 50% | F | 0.0 | 10 |
| 9/20 | 45% | F | 0.0 | 11 |
| 8/20 | 40% | F | 0.0 | 12 |
| 7/20 | 35% | F | 0.0 | 13 |
| 6/20 | 30% | F | 0.0 | 14 |
| 5/20 | 25% | F | 0.0 | 15 |
| 4/20 | 20% | F | 0.0 | 16 |
| 3/20 | 15% | F | 0.0 | 17 |
| 2/20 | 10% | F | 0.0 | 18 |
| 1/20 | 5% | F | 0.0 | 19 |
| 0/20 | 0% | F | 0.0 | 20 |