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What is 20% of 42?

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20% of 42
8.4
20 ÷ 100 × 42 = 8.4

Common Percentages of 42

Percentage Result Page
1% 0.42 View →
5% 2.10 View →
10% 4.20 View →
15% 6.30 View →
20% 8.40 ← current
25% 10.50 View →
30% 12.60 View →
40% 16.80 View →
50% 21 View →
75% 31.50 View →
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Calculate a Different Percentage

% of
20% of 42 = 8.4

Nearby Percentages of 42

15% 6.30 16% 6.72 17% 7.14 18% 7.56 19% 7.98 20% 8.40 21% 8.82 22% 9.24 23% 9.66 24% 10.08 25% 10.50
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About This Percentage

Here's what 20% of 42 actually equals — and a shortcut to remember it instantly. 20% of 42 = 8.4. Here's the working: 42 × 0.2 = 8.4. Divide 42 by 5 to get 8.4. This exact percentage shows up when calculating 20% discounts, 20% tax rates, or 20% savings targets. A 20% change on 42 means an increase takes you to 50.40, while a decrease drops you to 33.60. Understanding percentages at a glance lets you spot a good deal, calculate a fair tip, or evaluate an investment return — all without a calculator.

Frequently Asked Questions

20% of 42 is 8.4. To calculate this, multiply 42 by 20 and divide by 100: 42 × 20 ÷ 100 = 8.4.
Convert the percentage to a decimal (20 ÷ 100 = 0.2), then multiply by 42: 0.2 × 42 = 8.4. This method works for any percentage calculation.
8.4 is 20% of 42. To verify: 8.4 ÷ 42 × 100 = 20%.
Here are some common percentages of 42: 10% = 4.2, 25% = 10.5, 50% = 21, 75% = 31.5.
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