How to use the Fraction to Percentage Calculator
Enter the top number of the fraction as the numerator and the bottom number as the denominator.
How to convert a fraction to a percent
Divide the top number by the bottom number, then multiply by 100. For 3/4: 3 ÷ 4 = 0.75, and 0.75 × 100 = 75%. If the denominator divides 100 evenly you can also scale the fraction: 3/4 = 75/100 = 75%.
Using it for scores and shares
Fractions appear as test scores (42 out of 50), survey answers (18 of 24 people) or parts of a budget. Converting them to percentages puts results on the same scale so you can compare them: 42/50 is 84% and 18/24 is 75%.
The formula
Percentage = numerator ÷ denominator × 100.
Examples
- 3/4
75%
- 1/8
12.5%
- 7/20
35%
Common fractions as percentages
| Fraction | Percent |
|---|---|
| 1/2 | 50% |
| 1/3 | 33.3333% |
| 2/3 | 66.6667% |
| 1/4 | 25% |
| 3/4 | 75% |
| 1/5 | 20% |
| 2/5 | 40% |
| 1/8 | 12.5% |
| 3/8 | 37.5% |
| 5/8 | 62.5% |
| 1/10 | 10% |
| 1/12 | 8.3333% |
| 1/16 | 6.25% |
Limitations and assumptions
The denominator cannot be zero. Results that repeat forever, such as 1/3, are rounded for display.
Frequently asked questions
What is 1/3 as a percentage?
About 33.33%. The exact value is 33⅓%, because 1 ÷ 3 repeats forever.
What is 5/8 as a percentage?
62.5%.
Can the result be over 100%?
Yes. When the numerator is larger than the denominator, such as 5/4, the result is more than 100%, here 125%.