Browse tools
Live

Percentage Calculator

Calculate X% of Y, what percent X is of Y, and percentage change between two numbers.

Private by design. Runs in your browser. We don’t store what you paste.

Loading tool…

How it works

  1. 1Fill in the fields for the calculation you need.
  2. 2Read the live result.
  3. 3Adjust numbers anytime.

FAQ

Any data stored?
No — pure client-side math.