Calculators
Percentage Calculator
Calculate a percentage of a value, the percentage change between two values, or the final value after a percentage increase.
Runs locally in your browser. Nothing is uploaded.
How to use percentage calculator
- Choose the percentage calculation you need.
- Enter the two values.
- Read the result, which updates as you type.
Common questions
How do I find X percent of a number?
Multiply the number by the percentage divided by 100. For example, 15% of 80 is 12.
How is percentage change calculated?
Subtract the original value from the new value, divide by the original value, then multiply by 100.
Is this tool free?
Yes. This tool is free to use in your browser.
Are my inputs uploaded?
No. The tool processes your input in this browser tab and does not send it to a server.