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Percentage Calculator

Mode 1: What is X% of Y?

What is% of?

Mode 2: X is what % of Y?

is what % of?

Mode 3: % change from X to Y

Fromto
▸About this tool

Calculate percentages instantly: three modes for every percentage problem.

▸Privacy and details

Your files never leave your device.

Fast browser processing with no account required.

Optimized for desktop and mobile with accessible controls.

▸How to use
  1. Choose a calculator mode: "What is X% of Y", "X is what % of Y", or "% change from X to Y".
  2. Enter the known values in the input fields.
  3. The result updates instantly: no need to press calculate.
  4. Use the Clear button to reset the fields.
▸Why use this tool

Percentage calculations come up constantly: in finance, shopping discounts, grades, statistics, and everyday life. This tool gives you three modes to cover every common percentage question: finding a percentage of a number, working out what percentage one number is of another, and calculating the percentage change between two values.