Percentage Calculator

Calculate percentages instantly: what is X% of Y, what percentage is X of Y, and percentage increase or decrease.

Percentages show up everywhere, from sale prices and tips to tax and exam scores. Instead of reaching for a pen or guessing, pick the type of calculation you need, type in your numbers, and get an accurate answer immediately with the working shown so you can double-check it.

How Percentage Calculator works

  1. 1

    Choose the type of percentage calculation.

  2. 2

    Enter your numbers.

  3. 3

    View the instant result with full working shown.

Frequently asked questions

How do I calculate percentage increase?

Divide the difference between the new and old value by the old value, then multiply by 100.