Percentage Calculator

Calculate percentages, discounts, and percentage changes quickly.

% of

is what % of

How to Use the Percentage Calculator

Our free percentage calculator handles all common percentage calculations:

What is X% of Y? — Find a percentage of a number (e.g., 15% of 200 = 30)
X is what % of Y? — Find what percentage one number is of another
Percentage change — Calculate the % increase or decrease between two values
Add/Remove % — Apply a percentage to a number (useful for discounts, taxes, tips)

All calculations happen instantly in your browser. No data is sent anywhere.