Percentage Calculator
Three common percentage calculations in one place — all updating instantly as you type.
What is X% of Y?
% of
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Enter values above.
X is what percent of Y?
of
=
Enter values above.
Percentage increase / decrease from X to Y
→
=
Enter values above.
About this percentage calculator
Covers the three percentage questions people ask most, with instant results. Everything runs in your browser.
Examples
- 20% of 150 = 30
- 30 is 20% of 150
- From 100 to 125 is a 25% increase
Frequently asked questions
What can it calculate?
X percent of Y, what percent X is of Y, and percentage increase or decrease.
Does it update automatically?
Yes, results update as you type.
Is it free?
Yes, completely free with no signup.