Percentage Calculator
Calculate what percentage one number is of another, find a percentage of a value, measure percentage change between two numbers, and add or subtract a percentage. Every calculation runs in your browser.
Quick reference
This calculation type takes two plain numbers, so the shortcuts do not apply.
How to use
- Choose the kind of percentage calculation you need.
- Enter the two numbers the calculation requires.
- Read the result, which updates as soon as you calculate.
Frequently asked questions
- How do I calculate percentage change?
- Subtract the original value from the new value, divide by the original value, then multiply by 100. Use the "% change from A to B" mode to do this automatically.
- Is my data sent anywhere?
- No. The calculation happens entirely in your browser.
Privacy
Numbers are calculated in your browser and are never sent to a server.