What Is 40% of 20? Answer: 8
40% of 20 = 8
40 percent of 20 is 8.
Step by step
- Write 40% as a decimal: 40 ÷ 100 = 0.4.
- Multiply by 20: 0.4 × 20 = 8.
- So 40% of 20 is 8.
Shortcut: to find 40% in your head, take 10% and multiply by 4 — 10% of 20 is 2, which gives 8. Percentages also work backwards: 40% of 20 equals 20% of 40, which can be easier to calculate.
Details
- 40% as a fraction
- 2/5
- 40% as a decimal
- 0.4
- Remaining 60%
- 12
- 20 + 40%
- 28
- 20 − 40%
- 12
- Double: 80% of 20
- 16
How it works
Percent means “per hundred”. To find a percentage of a number, divide the percentage by 100 to turn it into a decimal, then multiply by the number. To increase a number by a percentage, multiply by 1 plus the decimal; to decrease it, multiply by 1 minus the decimal.
Nearby values
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Frequently asked questions
What is 40% of 20?
8.
How do you calculate 40 percent of 20?
Multiply 20 by 0.4 (that is, 40 ÷ 100): the answer is 8.
What is 20 plus 40%?
28.
What is 20 minus 40%?
12.