What is 20 percent of 15?
20% of 15 is 3.
20% of 15
3
How it is calculated
Formula: X% of Y = X ÷ 100 × Y
- Turn the percentage into a decimal: 20 ÷ 100 = 0.2.
- Multiply by the number: 0.2 × 15 = 3.
What this means
- Shortcut: 20% is 1/5, so divide 15 by 5: 15 ÷ 5 = 3.
- Percentages are reversible: 20% of 15 equals 15% of 20, which is often easier to work out in your head.
- As a price: a 20% discount on $15 saves $3, so you pay $12; adding 20% instead (tax or a tip) makes it $18.
Try other numbers
The full percentage calculator, filled in with these values.
%
Formula: X% of Y = X ÷ 100 × Y
20% of 15 is
3
20 ÷ 100 × 15 = 3
| Percentage | Value |
|---|---|
| 1% | 0.15 |
| 5% | 0.75 |
| 10% | 1.5 |
| 15% | 2.25 |
| 20% | 3 |
| 25% | 3.75 |
| 50% | 7.5 |
| 75% | 11.25 |
Show the steps
- Turn the percentage into a decimal: 20 ÷ 100 = 0.2.
- Multiply by the number: 0.2 × 15 = 3.
Percentages of 15
| Percent | of 15 |
|---|---|
| 5% | 0.75 |
| 10% | 1.5 |
| 15% | 2.25 |
| 20% | 3 |
| 25% | 3.75 |
| 30% | 4.5 |
| 35% | 5.25 |
| 40% | 6 |
| 45% | 6.75 |