Work out percentage change, percent of a total, tips and discounts.
Loading Percentage…
How to use Percentage
Open the Percentage tool.
Paste or type your number into the input field.
The output updates as you type. Adjust the options if you need a different format.
Copy the result, or share the URL to hand the exact input to someone else.
About Percentage
Solve the three everyday percentage questions at once: what is A% of B, C is what percent of D, and the percentage change from one value to another. Type the numbers and all answers update live.
What people use it for
Work out a tip, discount or tax as a percentage of a total.
Find what percentage one number is of another.
Calculate percentage increase or decrease between two figures.
Frequently asked questions
What can it calculate?
Percent-of-a-number, one number as a percent of another, and percentage change (increase/decrease), simultaneously.
Is it private?
Every calculation happens on this page, in your own browser. Your input is never sent to a server and never logged, which also means the tool keeps working when you are offline.