What Is 30% of 20?
30% of 20 = 6
How to calculate 30% of 20
- Turn the percentage into a decimal by dividing by 100: 30 ÷ 100 = 0.3.
- Multiply by the number: 0.3 × 20 = 6.
X% of Y = X ÷ 100 × Y
Mental math shortcut
Find 10% by moving the decimal point one place left: 10% of 20 = 2. Then multiply by 3 to get 30%: 2 × 3 = 6.
Swap trick: x% of y = y% of x, so 30% of 20 is the same as 20% of 30, which is also 6.
Other percentages of 20
| 5% of 20 | 1 |
| 10% of 20 | 2 |
| 15% of 20 | 3 |
| 20% of 20 | 4 |
| 25% of 20 | 5 |
| 40% of 20 | 8 |
| 50% of 20 | 10 |
| 75% of 20 | 15 |
30% of other numbers
| 30% of 10 | 3 |
| 30% of 12 | 3.6 |
| 30% of 15 | 4.5 |
| 30% of 25 | 7.5 |
| 30% of 30 | 9 |
| 30% of 40 | 12 |
| 30% of 45 | 13.5 |
| 30% of 50 | 15 |
| 30% of 60 | 18 |
| 30% of 70 | 21 |
| 30% of 75 | 22.5 |
| 30% of 80 | 24 |
| 30% of 90 | 27 |
| 30% of 100 | 30 |
| 30% of 120 | 36 |
| 30% of 125 | 37.5 |
| 30% of 150 | 45 |
| 30% of 180 | 54 |
| 30% of 200 | 60 |
Frequently asked questions
What is 30% of 20?
30% of 20 is 6 (30 ÷ 100 × 20).
What is 20 plus 30%?
20 + 30% = 26.
What is 20 minus 30%?
20 − 30% = 14.
How do you calculate a percentage of a number?
Divide the percentage by 100 and multiply by the number: 15% of 80 = 0.15 × 80 = 12.
How do you find what percent one number is of another?
Divide the part by the whole and multiply by 100: 12 is 12 ÷ 80 × 100 = 15% of 80.