能量是执行工作的能力。它以各种形式存在，例如动力学，电势，热等。在焦耳（J）中测量。
1 kcal = 0.002 hph
1 hph = 641.616 kcal
例子:
将15 千瓦利转换为马力小时：
15 kcal = 0.023 hph
| 千瓦利 | 马力小时 |
|---|---|
| 0.01 kcal | 1.5586e-5 hph |
| 0.1 kcal | 0 hph |
| 1 kcal | 0.002 hph |
| 2 kcal | 0.003 hph |
| 3 kcal | 0.005 hph |
| 5 kcal | 0.008 hph |
| 10 kcal | 0.016 hph |
| 20 kcal | 0.031 hph |
| 30 kcal | 0.047 hph |
| 40 kcal | 0.062 hph |
| 50 kcal | 0.078 hph |
| 60 kcal | 0.094 hph |
| 70 kcal | 0.109 hph |
| 80 kcal | 0.125 hph |
| 90 kcal | 0.14 hph |
| 100 kcal | 0.156 hph |
| 250 kcal | 0.39 hph |
| 500 kcal | 0.779 hph |
| 750 kcal | 1.169 hph |
| 1000 kcal | 1.559 hph |
| 10000 kcal | 15.586 hph |
| 100000 kcal | 155.857 hph |
规则