Percentage Calculator

Calculate percentages quickly and understand exactly how the result was obtained.

Calculate a percentage of a number

Enter a percentage and the number you want to calculate it from.

%
Enter the percentage value.
Enter the number you want to calculate the percentage of.
Result
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How to calculate a percentage

To calculate a percentage of a number, convert the percentage to a decimal and multiply it by the number.

Percentage of a number = (Percentage ÷ 100) × Number

Step-by-step calculation

1
Convert the percentage to a decimal Divide the percentage by 100.
2
Multiply by the number Multiply the decimal value by the number you entered.
3
Read the result The result is the requested percentage of the original number.

Example

Suppose you want to calculate 15% of 200.

Percentage 15%
Number 200
Formula (15 ÷ 100) × 200
Calculation 0.15 × 200
Result 30

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Note: This calculator provides a mathematical result based on the values you enter. Check that your inputs and units are appropriate for your intended use.