Fraction to Decimal Calculator
Turn a fraction into a decimal and a percent. Repeating digits are shown in brackets.
Quick answer: Type the top and bottom numbers to get the decimal. For example 3/8 = 0.375, 1/3 = 0.(3) and 5/6 = 0.8(3), where the digits in brackets repeat forever. The percent is shown too.
How to use it
- Type the top number (numerator) and the bottom number (denominator). You can add a whole number for a mixed number.
- The exact decimal appears. If the digits repeat, the repeating part is in brackets.
- The percent is shown below.
How it works
The calculator divides the top by the bottom by long division and watches for a repeating remainder. A fraction in lowest terms gives an ending decimal only if its bottom number has no prime factors other than 2 and 5. So 3/8 and 7/20 end, and 1/3 and 1/7 repeat.
Common fractions
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/3 | 0.3333 | 33.33% |
| 2/3 | 0.6667 | 66.67% |
| 1/4 | 0.25 | 25% |
| 3/4 | 0.75 | 75% |
| 1/5 | 0.2 | 20% |
| 2/5 | 0.4 | 40% |
| 3/5 | 0.6 | 60% |
| 4/5 | 0.8 | 80% |
| 1/6 | 0.1667 | 16.67% |
| 5/6 | 0.8333 | 83.33% |
| 1/8 | 0.125 | 12.5% |
| 3/8 | 0.375 | 37.5% |
| 5/8 | 0.625 | 62.5% |
| 7/8 | 0.875 | 87.5% |
| 1/10 | 0.1 | 10% |
What people use it for
- Homework
- Comparing fractions
- Recipes
- Discounts
Questions
What is 1/3 as a decimal?
0.333 and so on, written 0.(3).
What is 3/8 as a decimal?
0.375.
How do I change a fraction to a percent?
Divide the top by the bottom and multiply by 100. 3/8 is 37.5%.
What is 1/7 as a decimal?
0.(142857), a six-digit pattern that repeats.
Is it free?
Yes. No sign-up, no install and no limit.
Is anything saved or sent?
No. Everything runs in your browser. Only your own best score, where a page shows one, is kept on your device.
Last updated 2026-10-24. Free to use, no sign-up. Made by ficklestudio26.