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, 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%).
Popular Lookups
- 18 out of 20 = 90%
- 19 out of 20 = 95%
- 17 out of 20 = 85%
- 45 out of 50 = 90%
- 48 out of 50 = 96%
- 49 out of 50 = 98%
- 90 out of 100 = 90%
- 95 out of 100 = 95%
- 85 out of 100 = 85%
- 9 out of 10 = 90%
- 8 out of 10 = 80%
- 7 out of 10 = 70%
- 23 out of 25 = 92%
- 24 out of 25 = 96%
- 22 out of 25 = 88%
- 14 out of 15 = 93.3%
- 13 out of 15 = 86.7%
- 12 out of 15 = 80%
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 5
- Out of 6
- Out of 7
- Out of 8
- Out of 9
- Out of 11
- Out of 12
- Out of 13
- Out of 14
- Out of 16
- Out of 17
- Out of 18
- Out of 19
- Out of 21
- Out of 22
- Out of 23
- Out of 24
- Out of 26
- Out of 27
- Out of 28
- Out of 29
- Out of 31
- Out of 32
- Out of 33
- Out of 34
- Out of 35
- 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 45
- Out of 46
- Out of 47
- Out of 48
- Out of 49
- Out of 51
- Out of 52
- Out of 53
- Out of 54
- Out of 55
- Out of 56
- Out of 57
- Out of 58
- Out of 59
- Out of 61
- Out of 70
- Out of 90
- Out of 120
- Out of 150
- Out of 200
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.