Percentage Calculator
Calculate percentages instantly — accurate, free, and no signup required.
How to Calculate Percentage
To find the percentage of a number, multiply the number by the percentage value and divide by 100. For example, to find 20% of 500, multiply 500 by 20, then divide by 100 — giving you 100.
Percentage Formula
The basic percentage formula is: (Part / Whole) × 100 = Percentage. This calculator handles three common scenarios: finding a percentage of a number, finding what percent one number is of another, and calculating percentage increase or decrease between two values.