Fraction to percent
Enter a numerator and denominator to convert the fraction to a percentage and a decimal. Percent = numerator ÷ denominator × 100.
Percent: 86%
Decimal: 0.86
Formula
percent = numerator ÷ denominator × 100
Example: 43/50: 43 ÷ 50 = 0.86 = 86%.
Test scores, survey results, and everyday fractions
The most common use is grading: 43 out of 50 on a test is 86%. The same math turns survey tallies (“137 of 200 respondents”) into percentages for a report, or a free-throw record (“18 of 25”) into a shooting percentage (72%).
Some fractions never come out even: 1/3 is 33.333…% with the 3 repeating forever, so it gets rounded. That is not an error — thirds, sixths, sevenths, and ninths simply have no exact decimal form.
Common fractions as percentages
| Fraction | Percent |
|---|---|
| 1/2 | 50% |
| 1/3 | 33.33% |
| 2/3 | 66.67% |
| 1/4 | 25% |
| 3/4 | 75% |
| 1/5 | 20% |
| 1/8 | 12.5% |
| 3/8 | 37.5% |
| 5/8 | 62.5% |
| 7/8 | 87.5% |