Percentage Calculator

Work out X% of Y, what percent X is of Y, and percentage increase or decrease. 🔒 Runs in your browser

Result

How to use the Percentage Calculator

  1. Adjust the options (value a, value b) to fit your needs.
  2. The result updates instantly as you change the options.
  3. Copy the result or download it as a text file.

About this tool

Work out X% of Y, what percent X is of Y, and percentage increase or decrease. It is part of the free Converters collection on Online Tools Harbor. Everything happens locally in your browser, so it is fast and private.

Frequently asked questions

Is the Percentage Calculator free?

Yes. The Percentage Calculator is completely free to use, with no sign-up and no limits on normal use.

Is my data safe?

Yes. This tool runs entirely in your web browser using JavaScript. Your text is never uploaded to our servers.

Does it work on mobile?

Yes, it works in any modern browser on phones, tablets and computers. No app to install.

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