Percentage Calculator
Work out percentages, percentage change and what percent one number is of another. Free and private in your browser.
What is X% of Y?
% of=
X is what percent of Y?
is what % of=
Percentage increase / decrease
fromto=
Percentage calculator
Three calculators in one: find X percent of a number, work out what percent one number is of another, and calculate the percentage increase or decrease between two values. All results update live as you type.
How to calculate a percentage
- Choose the type of percentage calculation you need.
- Enter your numbers.
- The answer is calculated instantly in your browser.
- Use it for discounts, grades, tips and more.
Frequently asked questions
Can I find what percent X is of Y?
Yes. Enter both numbers and the calculator shows the percentage instantly.
Can it calculate percentage increase?
Yes. It works out percentage change between an old and new value.
Is my data uploaded?
No. The calculation runs in your browser.
Is it free?
Yes. The percentage calculator is completely free with no sign-up.