Fraction to Decimal Calculator
This fraction to decimal calculator converts any fraction, including mixed numbers, into a decimal in one step. Type the top and bottom, add a whole number if you've got one, and you'll see the decimal, the percent, and whether it terminates or repeats. It shows the simple division behind the answer, so you can do it on paper next time too.
- Decimal and percent
- Mixed numbers
- Flags repeating
- Steps shown
- Common chart
Last updated June 16, 2026 Decimal = top ÷ bottom Reviewed by the Calcowa math team
Enter your fraction
Leave the left box empty for a simple fraction, or use it for a mixed number.
Enter a top and a bottom, and a bottom that isn't zero.
3 ÷ 4 = 0.75
How to convert a fraction to a decimal
Converting a fraction to a decimal comes down to one move: divide the top number by the bottom number. The fraction bar is a division sign in disguise, so 3/4 simply means 3 ÷ 4, which is 0.75, and there's nothing more to it. That's the whole method, and it works for every fraction you'll meet.
Converting 3/8 to a decimal
Here's the method on a fraction that isn't as obvious as 3/4:
- 1
Read the bar as divide3/8 means 3 ÷ 8.
- 2
Do the division3 ÷ 8 = 0.375.
- 3
Check the typeIt stops after three digits, so 3/8 is a terminating decimal, 0.375.
Terminating and repeating decimals
Some fractions give a decimal that stops, and some don't, running on forever instead. A fraction terminates when its simplified bottom number is built only from 2s and 5s, so 1/8 and 3/20 both end neatly. Anything else repeats, like 1/3 = 0.3333… or 1/7 = 0.142857…, where a block of digits keeps coming back. The calculator labels which kind you've got, so you'll know whether to round.
To a percent, and from mixed numbers
Once you've got the decimal, a percent is one more step: multiply by 100, so 0.75 becomes 75%. For a mixed number like 2 1/4, keep the whole number and add the fraction part, giving 2 + 0.25 = 2.25. The calculator shows the percent automatically and it'll take a whole number too, and the fraction calculator handles adding and multiplying fractions if you need that first.
Fraction to decimal chart
Here's a quick fraction to decimal chart for the values that come up most, with the percent too.
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/3 | 0.3333… | 33.33% |
| 1/4 | 0.25 | 25% |
| 1/5 | 0.2 | 20% |
| 1/8 | 0.125 | 12.5% |
| 2/3 | 0.6667… | 66.67% |
| 3/4 | 0.75 | 75% |
| 5/8 | 0.625 | 62.5% |
| 7/8 | 0.875 | 87.5% |
Frequently asked questions
Is the fraction bar really a divide sign?
Yes, that's the key idea. The line in a fraction means "divide", so 7/8 is just 7 ÷ 8 = 0.875. Once you see it that way, turning any fraction into a decimal is the same simple step every time.
Divide the top number by the bottom number. For 3/4, that's 3 ÷ 4 = 0.75. The fraction bar is really a division sign, so every fraction is just a division waiting to happen, and the answer is its decimal form.
Divide 1 by 3, which gives 0.3333…, with the 3 repeating forever. That makes it a repeating decimal, usually written as 0.333 or with a bar over the 3. The calculator flags fractions like this as repeating rather than terminating.
A terminating decimal ends, like 0.75, while a repeating decimal goes on forever with a pattern, like 0.3333…. A fraction terminates only when its simplified denominator is made of 2s and 5s, so 1/8 ends but 1/3 repeats. The tool tells you which one you've got.
Keep the whole number and add the fraction part as a decimal. So 2 1/4 is 2 + (1 ÷ 4) = 2 + 0.25 = 2.25. Type the whole number in the small box on the left and the calculator handles it.
Convert it to a decimal first, then multiply by 100. Since 3/4 is 0.75, the percent is 75%. The result above shows the percent right next to the decimal, so you don't need a second step.
Because that's exactly what a fraction means: 3/4 is three things shared into four, which is 3 ÷ 4. Seeing the bar as a divide sign is the whole trick to converting any fraction to a decimal.
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