What is 40% of 20?

40% of 20 is 8. Try other numbers below, or read the quick working.

How to work out 40% of 20

"Per cent" means "per hundred", so 40% is the same as the decimal 0.4. To find 40% of 20, just multiply: 0.4 × 20 = 8.

Another way to see it: split 20 into 100 equal parts of 0.2 each, then take 40 of them. Both methods give 8.

Frequently asked questions

What is 40% of 20?

40 percent of 20 is 8. You get it by multiplying 20 by 0.4.

How do I calculate 40 percent of a number?

Divide the percentage by 100 to turn it into a decimal (0.4), then multiply by the number.

→ Open the full percentage calculator