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What is 18% of 40? = 7.2

18 percent of 40 is 7.2. See the step-by-step solution, formula and worked example for how to calculate 18% of 40.

18% of 40 = 7.2
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Solution: What is 18 percent of 40?

18% × 40 =
(18 ÷ 100) × 40 =
(18 × 40) ÷ 100 =
720 ÷ 100 = 7.2

Step-by-step explanation

  1. "Percent" means "per hundred", so 18% = 18 ÷ 100 = 0.18.
  2. "Of" means multiply, so we calculate 0.18 × 40.
  3. 0.18 × 40 = 7.2.
  4. So 18 percent of 40 is 7.2.

Good to know

Another way to check this: 1% of 40 is 0.4, and 18% is just 18 of those, so 18 × 0.4 = 7.2. Percentages like this come up everywhere — working out a 18% deposit, tip, tax or commission on 40, for example.

Quick reference: percentages of 40

1% of 400.4
5% of 402
10% of 404
15% of 406
20% of 408
25% of 4010
50% of 4020
75% of 4030
100% of 4040

Frequently asked questions

What is 18 percent of 40?
18% of 40 is 7.2.

How do you calculate 18% of 40?
Divide 18 by 100 to get 0.18, then multiply by 40 to get 7.2.

What is 40 minus 18%?
40 − 7.2 = 32.8 (see 18% off 40).

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