功率是完成工作或能量转移的速度。它以瓦（w）为单位进行测量。
1 W = 0 kcal/s
1 kcal/s = 4,184 W
例子:
将15 瓦转换为千瓦时第二：
15 W = 0.004 kcal/s
| 瓦 | 千瓦时第二 |
|---|---|
| 0.01 W | 2.3901e-6 kcal/s |
| 0.1 W | 2.3901e-5 kcal/s |
| 1 W | 0 kcal/s |
| 2 W | 0 kcal/s |
| 3 W | 0.001 kcal/s |
| 5 W | 0.001 kcal/s |
| 10 W | 0.002 kcal/s |
| 20 W | 0.005 kcal/s |
| 30 W | 0.007 kcal/s |
| 40 W | 0.01 kcal/s |
| 50 W | 0.012 kcal/s |
| 60 W | 0.014 kcal/s |
| 70 W | 0.017 kcal/s |
| 80 W | 0.019 kcal/s |
| 90 W | 0.022 kcal/s |
| 100 W | 0.024 kcal/s |
| 250 W | 0.06 kcal/s |
| 500 W | 0.12 kcal/s |
| 750 W | 0.179 kcal/s |
| 1000 W | 0.239 kcal/s |
| 10000 W | 2.39 kcal/s |
| 100000 W | 23.901 kcal/s |
规则