Percentage Calculator
Calculate any percentage instantly — what is X% of Y, percentage change, percentage difference, and more.
How to Use the Percentage Calculator
Choose the type of calculation you need from the tabs above. Enter your numbers, and the result updates instantly. All calculations happen in your browser with no data sent anywhere.
Types of Percentage Calculations
"X% of Y" tells you a specific percentage of a number — for example, 15% of 200 is 30. "X is what % of Y" finds the percentage relationship between two numbers. "% Change" calculates how much something has increased or decreased in percentage terms. "Increase/Decrease" applies a percentage increase or decrease to a number.
Common Uses
Percentage calculations are used for discounts and sales prices, tax calculations, grade percentages, tip calculations, profit margins, statistical analysis, and investment returns.