X out of Y as a Percentage
Convert any score to a percentage and letter grade instantly. Browse by denominator below, or use the search-style lookup to find any specific score.
How the Calculation Works
To convert X out of Y to a percentage, divide X by Y and multiply by 100:
Percent = (X ÷ Y) × 100
For example, on the out of 20 table, 18 out of 20 = (18 ÷ 20) × 100 = 90% — A. The letter grade uses the standard 10-point scale: A (90–100%), B (80–89%), C (70–79%), D (60–69%), F (below 60%).
Most Common Denominators
These are the most-searched test sizes. Select a denominator to see every possible score as a percentage and letter grade.
More Denominators
Additional lookup tables for every other denominator we support.
- Out of 2
- Out of 3
- Out of 4
- Out of 6
- Out of 7
- Out of 9
- Out of 11
- Out of 13
- Out of 14
- Out of 17
- Out of 19
- Out of 21
- Out of 22
- Out of 23
- Out of 26
- Out of 27
- Out of 28
- Out of 29
- Out of 31
- Out of 33
- Out of 34
- Out of 36
- Out of 37
- Out of 38
- Out of 39
- Out of 41
- Out of 42
- Out of 43
- Out of 44
- Out of 46
- Out of 47
- Out of 49
- Out of 51
- Out of 52
- Out of 53
- Out of 54
- Out of 56
- Out of 57
- Out of 58
- Out of 59
- Out of 61
- Out of 62
- Out of 63
- Out of 66
- Out of 67
- Out of 68
- Out of 69
- Out of 71
- Out of 73
- Out of 74
- Out of 76
- Out of 77
- Out of 78
- Out of 79
- Out of 81
- Out of 82
- Out of 83
- Out of 84
- Out of 85
- Out of 86
- Out of 87
- Out of 88
- Out of 89
- Out of 91
- Out of 92
- Out of 93
- Out of 94
- Out of 95
- Out of 96
- Out of 97
- Out of 98
- Out of 99
Interactive Test Grader
Need to grade an entire test? The Test Grade Calculator lets you enter any total and number wrong, then shows every possible score in a full grading-scale table — perfect for teachers grading a class set.
Grading Charts with Letter Grade & GPA
Want to see letter grades and GPA alongside the percentages? The Grading Chart Hub has a dedicated reference page for every common test size — each listing every score with its percentage, letter grade (A–F), and 4.0 GPA value.