Percentage Calculator

Use this free percentage calculator to find a percentage of a number, percentage increase, percentage decrease, or what percentage one number is of another.

Your result will appear here

Enter values and press Calculate.

How to use this calculator

Enter the values requested in the calculator form.
Press Calculate to generate the result instantly.
Compare the answer with the formula and examples below.

Examples

20% of 150 = 30
30 is 20% of 150
From 100 to 125 is a 25% increase

Frequently Asked Questions

How do I calculate a percentage?

Multiply the number by the percentage, then divide by 100.

How do I calculate percentage increase?

Subtract the old value from the new value, divide by the old value, then multiply by 100.