Percentage Calculator

Work out percentages: X% of Y, X is what % of Y, and percent change.

100% private — runs entirely in your browser. Your data is processed on your device and never sent to the internet.

What is X% of Y?

% of =

X is what percent of Y?

is of

Percent change from X to Y

from to =

About the Percentage Calculator

This free percentage calculator handles the three everyday percentage questions:

  • What is X% of Y?
  • X is what percent of Y?
  • Percentage increase or decrease from one number to another

Just type the numbers and the answers update instantly — all in your browser.

How to use it

  • Pick the calculation you need
  • Enter your numbers — the result updates as you type

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