% Percentage Calculator

Fraction to Percentage

Defaults: 3/4 = 75%. Type any numerator and denominator. The calculator divides them and multiplies by 100.

Enter values above to calculate.

Every fraction can be expressed as a percentage. Divide the top by the bottom, multiply by 100. The five common fraction children — halves, thirds, quarters, fifths, sixths — have dedicated pages with extra worked examples.

How it works. (Numerator ÷ Denominator) × 100. Recurring decimals rounded to 4 dp for display.
Worked examples
1/2 = 50%
1/3 = 33.33% (recurring)
1/4 = 25%
3/4 = 75%
2/5 = 40%
5/6 = 83.33% (recurring)
Related: Halves as percentages Thirds as percentages Quarters as percentages Fifths as percentages Sixths as percentages Decimal to percent

Frequently asked questions

How do I convert a fraction with a recurring decimal?
Round to as many places as you need. 1/3 = 0.3333... = 33.33% to 2dp. 2/3 = 66.67% to 2dp.
What's the formula?
(Numerator ÷ Denominator) × 100.
Do mixed numbers work?
Convert to an improper fraction first. 1 1/2 becomes 3/2 = 150%.