Fraction to Percentage Converter

Convert fractions, decimals, and percentages, or simplify a percent as a fraction.

Runs in your browser — numbers never leave this device

Enter two numbers

Pick a question and fill both fields — the answer appears as you type.

How to use it

  1. 1

    Choose fraction to percent, percent to fraction, or decimal to percent.

  2. 2

    Enter the values. Fractions are turned into a percent; percents are reduced to a simplest fraction.

  3. 3

    If a result such as 1/3 is rounded, the page says so. The default display is two decimal places.

A fraction becomes a percent by multiplying by 100

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100. 3/4 is 75%. 1/3 is 33.333…%, which displays as 33.33% at two decimal places and is marked as rounded because the decimal repeats.

To convert a percentage back to a fraction, write it over 100 and simplify. 75% is 75/100, which reduces to 3/4. This page does not add, subtract, multiply, or divide fractions beyond that conversion.

Other percentage tools

Frequently asked questions

How do you convert 3/4 to a percentage?

Divide 3 by 4 and multiply by 100. The result is exactly 75%.

Why is 1/3 shown as 33.33%?

1/3 of 100 is the repeating decimal 33.333…%. The default display rounds that to two places, half-up away from zero, and notes that rounding happened. More digits shows 33.333333%.

How do you convert a percentage to a fraction?

Place the percentage over 100 and simplify by dividing the top and bottom by their greatest common divisor. 75% becomes 3/4.

Can I convert a decimal such as 0.75?

Yes. Use the decimal option: 0.75 × 100 = 75%. Going the other way, 75% is the decimal 0.75.

Does this add or multiply fractions?

No. It only converts among fractions, decimals, and percentages. A general fraction calculator is outside this version.