Percentage Calculator
Three common percentage calculations, all in one place.
How to calculate percentage
Enter any two of the three values — the part, the whole, or the percentage — and this free percentage calculator works out the missing one instantly. It covers the common cases: what percentage X is of Y, what value is X% of Y, and percentage increase or decrease between two numbers. Handy for discounts, marks, tips and everyday percentage math without pulling out a calculator app.