Best Free Percentage Calculator Online

Percentage calculations come up constantly in daily life, from figuring out sale discounts to calculating tax rates to computing investment returns. Our free percentage calculator handles every type of percentage problem with instant, accurate results.

The calculator includes multiple modes: find a percentage of a number, calculate what percentage one number is of another, find percentage increase or decrease, and compute percentage difference between two values. Each mode has clear inputs and explanations.

For more specific calculations, try our discount calculator for shopping savings, our tip calculator for restaurant bills, our conversion rate calculator for marketing metrics, and our profit margin calculator for business analysis.