Decimal to fraction converter
Type a decimal to get its exact simplified fraction. The optional denominator limit helps with inch measurements and rough values like 0.333.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter decimal number and largest denominator allowed (optional).
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Write the digits as the numerator over 10 to the number of decimal places, then divide both by their greatest common divisor: 0.375 = 375/1000 = 3/8.
Example
Inputs: Decimal number = 0.375. Result: Simplified fraction: 3/8.
0.375
3/8
Limits and caveats
- The fraction matches the digits you typed, so 0.333 becomes 333/1000, not 1/3, unless you set a denominator limit.
- For repeating decimals such as 0.1666 recurring, use the repeating decimal to fraction tool.
Questions about this tool
How do I convert 0.75 to a fraction?
Write it as 75/100, then divide the top and bottom by 25 to get 3/4.
What does the largest denominator box do?
It finds the closest fraction whose denominator does not exceed your limit, such as 16, 32 or 64 for inch sizes, and shows how far it is from the original.
Can I type Arabic digits or the Arabic decimal mark?
Yes. Input such as ٠٫٢٥ is converted to 0.25 before the calculation.