Percentage Calculator

Four ways to calculate percentages — pick the one you need.

of
is what % of
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About this calculator

Four common percentage calculations in one place. Switch between tabs depending on what you know and what you need to find.

Which tab to use

  • X% of Y — "What is 20% of 150?" → 30
  • X is what % of Y — "30 is what percent of 150?" → 20%
  • % Change — "What is the % change from 80 to 100?" → 25% increase
  • Add / Remove % — "Add 15% to 200" → 230, or "Remove 15% from 200" → 170
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FAQ

What is percentage change vs adding a percentage?
Percentage change measures the relative change between two values. Adding/removing a percentage applies that percentage directly to one value (e.g. a 15% tip or a 10% discount).
How do I calculate tax?
Use the Add % tab. Enter your pre-tax price as Value and your tax rate as Percentage.