Percentage Calculator
Calculate percentages quickly with three common formulas.
About the Percentage Calculator
Calculate percentages with three common formulas. Find percentages, percentage of a number, and percentage change.
Private by design
Everything you type here is processed inside your browser. Nothing is sent to a server, logged or stored, so it is safe to use with real numbers, drafts and anything you would not paste into a hosted tool.
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Questions people ask
How do I calculate a percentage of a number?
Enter the percentage and the number. For example, to find 15% of 200, enter 15 and 200 to get 30.
How do I calculate percentage change?
Enter the original value and the new value. The tool calculates the percentage increase or decrease between the two numbers.
What percentage formulas are available?
The tool supports three common calculations: what is X% of Y, X is what % of Y, and percentage change from X to Y.