Percentage Calculator

Solve any percentage question in seconds.

Loading tool…

About Percentage Calculator

Three percentage calculators in one place. Find X percent of a number, find what percent one number is of another, and work out the percentage increase or decrease between two values.

How to use Percentage Calculator

  1. 1Pick the calculator that fits your question.
  2. 2Type the numbers.
  3. 3See the answer and the formula used.

Why use this tool?

  • Private. What you type stays in your browser.
  • Free. No sign up, no limits, no watermark.
  • Fast. Results in seconds, no waiting in a queue.
  • Any device. Works on computers, tablets and phones.

Frequently asked questions

How do I find 20 percent of 150?

Multiply 150 by 0.20. The answer is 30.

How is percentage change worked out?

(New value - Old value) / Old value x 100.

Can I use decimals?

Yes, decimals work in every box.