Percentage Calculator
Calculate percentages in multiple ways: find what percent one number is of another, calculate a percentage of a number, or determine percentage increase/decrease.
Result
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Why use this tool?
Percentages are used everywhere: shopping discounts, tax calculations, grade scores, financial analysis, and more. This tool handles common percentage calculations quickly and accurately.
- Multiple calculation modes — Choose from 4 different percentage calculations.
- Instant results — Get accurate answers immediately.
- Formula shown — See the calculation formula for learning purposes.
- Privacy-focused — All calculations happen in your browser. No data is stored or transmitted.
- Free and unlimited — No sign-up, no limits, no ads.
How to use
- Select the calculation mode you need from the buttons above.
- Enter the required numbers in the input fields.
- Click Calculate to see the result.
- Use Copy Result to copy the answer, or Clear to start over.
Frequently Asked Questions
Yes, the MushTools Percentage Calculator is completely free with no sign-up required. All calculations happen in your browser.
You can calculate: what percentage one number is of another, a percentage of a number, percentage increase, and percentage decrease.
No. Everything runs client-side in your browser. Your numbers never leave your device.