Decimal to Fraction Calculator

Turn a positive or negative terminating decimal into an exact simplified fraction—without floating-point guessing.

Try an example:

Quick guide

How to convert a decimal to a fraction

Enter a terminating decimal such as 0.125 or -2.75.
Select Convert to fraction.
Read the exact lowest-term fraction, mixed number, and reduction steps.

Use decimal places to choose the denominator

One decimal place uses 10, two places use 100, three places use 1,000, and so on. Remove the decimal point to get the numerator, then reduce.

0.125 = 125/1000

The GCF of 125 and 1,000 is 125.

125/1000 = 1/8

Terminating versus repeating decimals

A terminating decimal has a finite number of digits, so it can be converted exactly using a power of ten. Repeating decimals require a different algebraic method and are intentionally outside this calculator's input format.

Frequently Asked