Skip to content

Percentage Calculator

Percentage Calculator

Runs in your browser. Nothing you type is sent or saved.

How Percentage Calculator works

Pick what you want to find, type two numbers and the answer appears at once. There are four modes: a percentage of a number, what percent one number is of another, the percent change between two numbers, and adding or removing a percentage.

When it helps

  • Discounts and sale prices while shopping
  • Marks and exam percentage
  • Salary hike and price increase
  • Profit, loss and tax checks

Frequently asked questions

How do I find 20% of a number?

Choose "What is X% of Y", enter 20 and the number. The result is the number multiplied by 0.20.

How is percentage change calculated?

(New value minus old value) divided by the old value, times 100. A negative answer means a decrease.

Why is my result different from my phone calculator?

Check the order of the two numbers. "10 is what % of 50" and "50 is what % of 10" give different answers.

Guides about this tool