Fast percentage math

Simple Percent Calculator

Find percentages, percentage changes and percentage differences in seconds.

Choose your calculator

Pick the question that matches what you need.

What is a percentage of a number?

Example: what is 20% of 150?

Percentage

Number

Result

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Enter values to see the answer.

Enter values to see the formula.

What percentage is it?

Example: 30 is what percent of 150?

Part

Total

Result

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Enter values to see the formula.

Percentage change

Example: from 100 to 120

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Original number

New number

Result

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Enter values to see the answer.

Enter values to see the formula.

Percentage difference

Example: compare 80 and 100

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First number

Second number

Result

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Enter values to see the answer.

Enter values to see the formula.

What can you calculate here?

Use this page as a quick percentage calculator. You can find a percentage of a number, find what percentage one number is of another, calculate percentage change and compare two numbers with percentage difference.