HHaru Toolsharu tools
All tools
Everyday math

Percentage calculator

Calculate percentages, proportions, and percentage changes.

How to use percentage calculator

Enter the values and choose a calculation mode.

Good to know

Percentage change is (new − old) ÷ old × 100. Proportions and percentage changes with a zero base are undefined.

More useful tools

Keep your tools on your home screen

iPhone: Safari Share menu → Add to Home Screen

Android: Chrome menu → Install app or Add to Home screen

If the install option is missing, open this page in your regular browser.