Percentage calculator
The three everyday percentage calculations, all at once. Type the numbers — the answers update live. Nothing is uploaded.
What is X% of a number?
%of=—
X is what percent of Y?
of=—%
Percentage increase / decrease
fromto=—%
Everything runs in your browser. No upload, no sign-up.
How it works
STEP 1
Type the numbers
Fill any of the three calculators — they work independently.
STEP 2
See the answer
The result updates instantly as you type.
STEP 3
Use it
Discounts, tips, grades, changes — all private, nothing leaves your device.