Percentage Calculator
Solve common percentage problems — increase, decrease, and part-of-whole.
Find percentages, increases, and differences.
How to use
- Choose the type of percentage problem you want to solve.
- Enter the known values (e.g., whole number and percentage).
- Read the calculated result instantly.
- Try different modes for increase, decrease, or difference.
About Percentage Calculator
Find percentages, increases, and differences.
Runs in your browser — your files and input stay on your device.
Frequently asked questions
What percentage problems can I solve?
Find X% of a number, percentage change, and what percent one number is of another.
Is data stored?
No. Calculations are done in your browser.
Can I use decimals?
Yes. Decimal values are supported where applicable.