FREE · CALCULATORS & CONVERTERS
Percentage Calculator.
Calculate a percentage, a share or a percentage change.
How to use Percentage Calculator
Enter or choose the required input, adjust the settings, then generate and review the result. 20% of 150 is 30.
How it works
Calculate a percentage, a share or a percentage change. Finite numbers; percent change from zero is undefined. Inputs stay on your device. Review the preview or output before using it; refresh the page to clear the current working session.
Example
20% of 150 is 30.
Questions about Percentage Calculator
Is Percentage Calculator free, and do I need an account?
Yes. This tool is free to use in your browser without an account. Processing takes place on your device.
What are the limits and what should I check?
Finite numbers; percent change from zero is undefined. Review the result before using it in your work.
Is my input sent to a server?
Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.