What is 20% of 40?

20% of 40 = 8

Formula: 40 × 20 ÷ 100 = 8. Or work it out as 20 hundredths: 1% of 40 is 0.4, so 20% is 0.4 × 20 = 8.

40 − 20% = 32 (for example a 20% discount)
40 + 20% = 48 (for example adding 20% tax or a tip)
8 is 20% of 40

Any other numbers? Use the percentage calculator, the discount calculator or the percent change calculator.

Other percentages of 40

Percent	Of 40
8%	3.2
9%	3.6
10%	4
12%	4.8
15%	6
18%	7.2
25%	10
30%	12

20% of other numbers

Number	20% of it
10	2
20	4
25	5
30	6
50	10
60	12
70	14
75	15

All percentage answers