What is 18 Percent of 42?
18% of 42 = 7.56
- Result
- 7.56
- Remaining
- 34.44
- 18% as decimal
- 0.18
- 42 + 18%
- 49.56
Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it
How to work it out
- Turn the percentage into a decimal: 18 ÷ 100 = 0.18
- Multiply: 0.18 × 42 = 7.56
- Check: Work backwards: 7.56 ÷ 42 × 100 = 18%.
Another method. As a proportion of part to whole: 18/100 = part/42, so part = 18 × 42 ÷ 100 = 7.56. Both methods always give the same answer.
In a spreadsheet: =18%*42. Forgetting to divide the percentage by 100 makes the answer 100 times too big. Note that x% of y always equals y% of x.
What the result means
7.56 is the 18% share of 42. The remaining 82% is 34.44, and the two parts add back up to 42.
Discounts: 18% off an item priced $42 saves $7.56, so you pay $34.44.
Adding and taking away 18%
Increasing 42 by 18% gives 49.56 and decreasing it by 18% gives 34.44. These do not cancel out: raising 42 by 18% and then lowering the result by 18% ends at 40.6392, because the second 18% is taken of a bigger number.
Related results
| 5% of 42 | 5% of 42 = 2.1 |
| 10% of 42 | 10% of 42 = 4.2 |
| 15% of 42 | 15% of 42 = 6.3 |
| 20% of 42 | 20% of 42 = 8.4 |
| 25% of 42 | 25% of 42 = 10.5 |
| 50% of 42 | 50% of 42 = 21 |
| 75% of 42 | 75% of 42 = 31.5 |
The other way round: 42% of 18
Practice
| 4% of 45 | Show answer4% of 45 = 1.8 |
| 94% of 33 | Show answer94% of 33 = 31.02 |
| 13% of 50 | Show answer13% of 50 = 6.5 |
| 59% of 40 | Show answer59% of 40 = 23.6 |
| 10% of 15 | Show answer10% of 15 = 1.5 |
| 1% of 75 | Show answer1% of 75 = 0.75 |
How answers are calculated and checked: methodology.
Questions
What is 18 Percent of 42?
18% of 42 is 7.56. Formula, steps and practice examples.
What is 18% off 42?
34.44. Taking 18% off leaves 82% of 42.
What is 42 plus 18%?
49.56. Adding 18% is the same as multiplying by 1.18.