Converting a percentage to a decimal is necessary for many calculations because percentages are often converted into decimal form before multiplication.
Percentage to Decimal Formula
Divide the percentage by 100:
Decimal = Percentage ÷ 100
For example:
25 ÷ 100 = 0.25
Therefore:
25% = 0.25
More Examples
50% = 0.50
10% = 0.10
5% = 0.05
1% = 0.01
125% = 1.25
Using Decimals in Calculations
Suppose you want to calculate 15% of $300.
Convert:
15% = 0.15
Then:
300 × 0.15 = 45
So 15% of $300 is $45.
For quick calculations, use the Percentage Calculator.
Understanding how percentages and decimals relate makes many percentage problems much easier to solve.