What Is 5% of 30?
5% of 30 = 1.5
How to calculate 5% of 30
- Turn the percentage into a decimal by dividing by 100: 5 ÷ 100 = 0.05.
- Multiply by the number: 0.05 × 30 = 1.5.
X% of Y = X ÷ 100 × Y
Mental math shortcut
Find 10% by moving the decimal point one place left: 10% of 30 = 3. Halve it for 5%: 1.5.
Swap trick: x% of y = y% of x, so 5% of 30 is the same as 30% of 5, which is also 1.5.
Other percentages of 30
| 10% of 30 | 3 |
| 15% of 30 | 4.5 |
| 20% of 30 | 6 |
| 25% of 30 | 7.5 |
| 30% of 30 | 9 |
| 40% of 30 | 12 |
| 50% of 30 | 15 |
| 75% of 30 | 22.5 |
5% of other numbers
| 5% of 10 | 0.5 |
| 5% of 12 | 0.6 |
| 5% of 15 | 0.75 |
| 5% of 20 | 1 |
| 5% of 25 | 1.25 |
| 5% of 40 | 2 |
| 5% of 45 | 2.25 |
| 5% of 50 | 2.5 |
| 5% of 60 | 3 |
| 5% of 70 | 3.5 |
| 5% of 75 | 3.75 |
| 5% of 80 | 4 |
| 5% of 90 | 4.5 |
| 5% of 100 | 5 |
| 5% of 120 | 6 |
| 5% of 125 | 6.25 |
| 5% of 150 | 7.5 |
| 5% of 180 | 9 |
| 5% of 200 | 10 |
| 5% of 250 | 12.5 |
| 5% of 300 | 15 |
Frequently asked questions
What is 5% of 30?
5% of 30 is 1.5 (5 ÷ 100 × 30).
What is 30 plus 5%?
30 + 5% = 31.5.
What is 30 minus 5%?
30 − 5% = 28.5.
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.