How to convert a fraction to a decimal
- Type the fraction, such as 3/8, a negative one like −7/4, or a mixed number like 1 1/2.
- Read the decimal. If it never ends, the repeating digits are shown in brackets: 1/6 is 0.1(6).
- Copy the exact decimal, the simplified fraction or the percent from the rows below.
Common fractions as decimals
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/3 | 0.(3) | 33.33…% |
| 1/4 | 0.25 | 25% |
| 1/5 | 0.2 | 20% |
| 1/6 | 0.1(6) | 16.66…% |
| 1/8 | 0.125 | 12.5% |
| 3/8 | 0.375 | 37.5% |
| 5/8 | 0.625 | 62.5% |
| 1/16 | 0.0625 | 6.25% |
| 2/3 | 0.(6) | 66.66…% |
| 3/4 | 0.75 | 75% |
Inches and other everyday fractions
Fractions turn up most in measurements: imperial rulers are marked in 1/2, 1/4, 1/8 and 1/16 of an inch, and recipes use 1/3 and 2/3 cups. All of those with a power of 2 at the bottom convert to short, exact decimals, which is why 5/16 inch is exactly 0.3125 inch. Thirds never come out exact in decimal, so measurements in thirds are usually rounded: 0.33 or 0.333 depending on how precise you need to be.