Work out percentages in seconds: find X% of a number, what percentage one number is of another, and the percentage increase or decrease between two numbers. Free, no sign-up, and it works completely in your browser.
Percentage Calculator
Enter a percentage and a number, then click Calculate to see all three answers at once.
About This Percentage Calculator
What is a percentage calculator?
A percentage calculator helps you work out percentage problems in seconds. Percentages are used every day: in school marks, shop discounts, tips, tax, salary changes and price rises. Instead of working out the maths by hand, you type in two numbers and get the answer straight away.
How to use it, step by step
- Enter the percentage in the first box (X). For example, enter 20 to find 20%.
- Enter the number in the second box (Y). For example, enter 150.
- Click Calculate.
- Read the three answers: X% of Y, what percentage X is of Y, and the change from X to Y.
- Click Copy result to copy all three answers and paste them anywhere.
Who it helps
Students working out exam marks and grades, shoppers checking discounts and sale prices, and anyone who wants to find a tip, tax amount or price change quickly. It is also useful for teachers and parents helping with homework.
Features and benefits
- Free to use, with no sign-up and no limits.
- Three answers in one click: X% of Y, X as a percentage of Y, and the percentage change.
- Works for discounts, tips, tax, marks and price changes.
- Copy button saves the result in one click.
- Private: your numbers never leave your browser.
Frequently Asked Questions
How do I find 20% of 150?
Enter 20 in the first box and 150 in the second box, then click Calculate. The answer is 30.
How do I find the percentage increase between two numbers?
Enter the first number in the first box and the second number in the second box. The third line of the answer shows the change: a positive number is an increase and a negative number is a decrease.
Is this percentage calculator free?
Yes. It is free, needs no sign-up, and works completely in your browser. Your numbers are never sent anywhere.
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