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Instant calculation
Get the result directly while you enter the data.
Online Calculator
Percentage calculator
Quickly calculate percentages for shopping, studying, work, and everyday tasks.
What is X% of Y?
Result
30
What percentage does an amount represent?
Result
20%
Information
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Local processing
Data are processed in your browser and do not need to be sent to a server.
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Free
No registration, subscription, or paid APIs required.
Frequently asked questions
How to calculate a percentage of a quantity?
It multiplies the amount by the percentage and divides the result by 100.
How to know what percentage a quantity represents?
Divide the part by the total and multiply by 100.
Does it support decimals?
Yes. You can enter decimal values.
Do I need to sign up?
No. The calculator works for free and directly in the browser.