Percentage Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the percentage and the number.
- Press Calculate to see the result.
How it works
This finds a percentage of a number: result = (percent ÷ 100) × value. For example, 15% of 200 means 0.15 × 200.
Worked example
15% of 200. 0.15 × 200 = 30.
Frequently asked questions
How do I work out a percentage increase?
Add the percentage to 100% first — a 15% increase on 200 is 115% of 200 = 230. Or use the Percentage Change Calculator.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.