Math
Percentage Calculator
What is X% of Y, X is what % of Y, and percentage change — all in one place.
Inputs
Percentage Calculator
Result
15% of 200
30
Three questions, one calculator
'What is X% of Y', 'X is what % of Y', and '% change from X to Y' are the three questions percentage math answers. This tool handles all three in one place. For a specialized change tool with sign and direction, see the Percent Change Calculator.
Everyday uses
Percentages show up everywhere: sales pricing (see the Discount Calculator), taxes (the Sales Tax Calculator), tipping (the Tip Calculator), and grades (the Grade Calculator).