What is 10% of 40?

10% of 40 is

4

To find 10% of 40, multiply 40 by 10 and divide by 100. 40 × 10 ÷ 100 = 4.

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Result

4

Another way to look at it

Turn it around: 4 is 10% of 40. Put another way, 4 out of every 40 is the same as 10%.

Quick example

If 40 people took part and 10% said yes, that is 4 people.

Other percentages of 40

Browse more common percentage calculations — a quick-reference page covering all common combinations.