Percentage Calculator
Calculate percentages instantly — find X% of Y, percentage change, reverse lookups, and more.
How to use
- Select a calculation mode using the tabs above.
- X% of Y — Enter a percentage and a number to find what that percentage equals.
- % Change — Enter a starting value and ending value to find the percentage increase or decrease.
- What % is X of Y — Enter two numbers to find what percentage the first is of the second.
- Reverse % — Enter a value and a percentage to find what the original whole number was.
- Results update on calculate. Use the Copy Result button to copy the answer to your clipboard.
About this Percentage Calculator
Use this free percentage calculator to find X percent of a number, calculate percentage increase or decrease, work out what percent one number is of another, and reverse percentage values. No signup is required, and the tool works on phones, tablets, and desktop browsers.