Percent, Decimal and Fraction Converter
Convert a percentage to a decimal, a fraction and "1 in N" odds — or back.
%
25% equals
0.25
as a decimal
As a fraction
1/4
As probability
1 in 4
About the Percent, Decimal and Fraction Converter
The AlarmDaddy Percent, Decimal and Fraction Converter turns a percentage into its decimal, its simplified fraction and its "1 in N" probability — and converts a decimal back into a percentage. Enter 25% and see 0.25, 1/4 and "1 in 4" at once.
It is the quick reference you need when a number is written one way but you need it another — for stats, finance, odds and schoolwork.
How to use this calculator
- 1Choose whether to start from a percentage or a decimal.
- 2Enter the value.
- 3Read the decimal, percentage, fraction and probability.
The formula
A percentage is a value out of 100, so dividing by 100 gives the decimal and multiplying by 100 goes back. The fraction is the decimal reduced to lowest terms, and the "1 in N" odds are the reciprocal of the decimal.
Frequently asked questions
25% is 0.25 as a decimal, 1/4 as a fraction, and "1 in 4" as odds.