Pro Calculators and Guides
How to Convert Decimals to Fractions and Fractions to Decimals
Turn 0.375 into 3/8, or 2 3/8 into 2.375, with the simplest form and the percentage. Includes repeating decimals.
Saizul Amin15 Oct 2026 · Updated 17 Oct 2026 · 1 min read
Switching between decimals and fractions comes up in school, cooking, measuring and carpentry. The idea is simple, and the tool does the simplification for you.
Quick answer
Type a decimal such as 0.375 to get 3/8, or type a fraction such as 3/8 or a mixed number such as 2 3/8 to get the decimal. The result is also given as a percentage.
Decimal to fraction by hand
- Write the decimal over a power of 10: 0.375 = 375/1000.
- Find the greatest common factor: 125.
- Divide both parts: 375 ÷ 125 = 3 and 1000 ÷ 125 = 8.
- Result: 3/8.
Fraction to decimal
Divide the top by the bottom: 3 ÷ 8 = 0.375. A mixed number keeps the whole part: 2 3/8 = 2 + 0.375 = 2.375.
Repeating decimals
Some fractions never end. 1/3 = 0.3333… and 2/3 = 0.6666…. If you type 0.3333, the tool matches the nearest simple fraction (1/3).
Common conversions
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/4 | 0.25 | 25% |
| 3/4 | 0.75 | 75% |
| 1/5 | 0.2 | 20% |
| 1/8 | 0.125 | 12.5% |
Tips
- In measuring, 1/16 inch = 0.0625 inch, a useful value for rulers.
- In exam answers, give the form the question asks for, and simplify fractions.
- Use the fraction calculator for adding or multiplying fractions.
