Percentage Calculator
Enter the numbers and get the percentage, the percentage of a value, or the percentage change instantly.
Result—
All calculations are done in your browser. Nothing is sent to a server.
How to use this percentage calculator
- Choose the type of percentage calculation you need.
- Enter the numbers in the input fields.
- The result is shown instantly.
Frequently asked questions
How do I calculate the percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 25% of 80 is (25 × 80) / 100 = 20.
How do I calculate percentage change?
Subtract the old value from the new value, divide by the old value and multiply by 100.
Is this percentage calculator free?
Yes. It is free to use and does not require signup.
Is my data sent to a server?
No. All calculations happen in your browser.