What is 40% of 30?

40% of 30 is

12

To find 40% of 30, multiply 30 by 40 and divide by 100. 30 × 40 ÷ 100 = 12.

Need a different percentage? Use the free percentage calculator.

Try a different calculation

Enter any percentage

Enter any number

Result

12

Another way to look at it

Turn it around: 12 is 40% of 30. Put another way, 12 out of every 30 is the same as 40%.

Quick example

If 30 people took part and 40% said yes, that is 12 people.

Other percentages of 30

What is 5% of 30? 1.5
What is 10% of 30? 3
What is 12.5% of 30? 3.75
What is 15% of 30? 4.5
What is 17.5% of 30? 5.25
What is 20% of 30? 6

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