What is 10% of 400?

10% of 400 is

40

To find 10% of 400, multiply 400 by 10 and divide by 100. 400 × 10 ÷ 100 = 40.

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Result

40

Another way to look at it

Turn it around: 40 is 10% of 400. Put another way, 40 out of every 400 is the same as 10%.

Quick example

If 400 people took part and 10% said yes, that is 40 people.

Other percentages of 400

What is 5% of 400? 20
What is 12.5% of 400? 50
What is 15% of 400? 60
What is 17.5% of 400? 70
What is 20% of 400? 80
What is 25% of 400? 100

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