What is 20% of 90?

20% of 90 = 18

Formula: 90 × 20 ÷ 100 = 18. Or work it out as 20 hundredths: 1% of 90 is 0.9, so 20% is 0.9 × 20 = 18.

90 − 20% = 72 (for example a 20% discount)
90 + 20% = 108 (for example adding 20% tax or a tip)
18 is 20% of 90

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

Other percentages of 90

Percent	Of 90
8%	7.2
9%	8.1
10%	9
12%	10.8
15%	13.5
18%	16.2
25%	22.5
30%	27

20% of other numbers

Number	20% of it
40	8
50	10
60	12
70	14
75	15
80	16
100	20
120	24

All percentage answers