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Percentage Calculator

Calculate percentages quickly and easily.

X is what percent of Y
Find the share one number is of another.
Result12.5%

25 is 12.5% of 200.

25 ÷ 200 × 100 = 12.5%

What is X% of Y
Take a percentage of a number.
%
Result30

15% of 200 = 30.

15% × 200 = 30

Calculations happen in your browser.

Worked example

Say you want to know what share 25 is of 200 — you'll see 12.5%. Separately, 15% of 200 is 30. Use the left card for “what share is this?”, and the right card for “how much is this percent?”

FAQ

How do I work out “X is what percent of Y”?
Divide X by Y, then multiply by 100. If Y is 0, there's no percentage to show — a number can't be a share of nothing.
How do I work out “what is X% of Y”?
Multiply Y by X, then divide by 100. So 15% of 200 is 200 × 0.15, which is 30.
Is this the same as a percentage increase?
No. This page answers “what share?” and “how much is this percent?”. If you want to grow or shrink a starting amount, use the increase, decrease, or discount calculators.