How to find 15 percent of 120
"Percent" means per hundred, so 15% is the fraction 15/100, or 0.15 as a decimal. Taking 15 percent of 120 means multiplying 120 by that fraction:
15% of 120 = 120 x 15 / 100
= 1,800 / 100
= 18The same answer comes from the decimal form: 120 x 0.15 = 18. And because multiplication is commutative, 15% of 120 equals 120% of 15, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 120 is 12 (move the decimal one place left), and 1% is 1.2. Build 15% from those pieces: 1 x 12 + 5 x 1.2 = 18.
Nearby percentages of 120
| Percent | Of 120 | 120 minus it | 120 plus it |
|---|---|---|---|
| 1% | 1.2 | 118.8 | 121.2 |
| 5% | 6 | 114 | 126 |
| 10% | 12 | 108 | 132 |
| 14% | 16.8 | 103.2 | 136.8 |
| 16% | 19.2 | 100.8 | 139.2 |
| 20% | 24 | 96 | 144 |
| 25% | 30 | 90 | 150 |
| 30% | 36 | 84 | 156 |
| 50% | 60 | 60 | 180 |
| 75% | 90 | 30 | 210 |
15 percent of other amounts
| Amount | 15% of it |
|---|---|
| 25 | 3.75 |
| 30 | 4.5 |
| 40 | 6 |
| 50 | 7.5 |
| 60 | 9 |
| 75 | 11.25 |
| 80 | 12 |
| 100 | 15 |
| 150 | 22.5 |
| 200 | 30 |
Where this comes up
A 15% discount on a 120 price takes off 18, leaving 102. A 15% tip or tax on 120 adds 18, for a total of 138. If 120 is a score out of a possible total, 15% of it is the share 18 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.