Back to Free Tools
FREE TOOLS
Percentage calculator
Calculate a percentage of a value, a proportion, or a percentage change.
Text and numbers
Text
Browser only
Your input and output are processed in this browser. They are not uploaded for processing. No account is required.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the requested values: Operation; A; B.
- Choose Calculate and review the result.
- Download the text result if useful. Reset restores the initial inputs and clears the result.
Examples
20 percent of 150 = 30.
Limitations
Runs entirely in your browser. Numeric calculations use IEEE-754 floating-point arithmetic; displayed values are rounded to 15 significant digits unless stated otherwise.
Percentage change divides by the absolute old value; a zero reference is rejected.
Related tools
No items found.