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 ft·lb = 1.356 N·m
1 N·m = 0.738 ft·lb
例子:
将15 脚转换为牛顿米：
15 ft·lb = 20.337 N·m
| 脚 | 牛顿米 |
|---|---|
| 0.01 ft·lb | 0.014 N·m |
| 0.1 ft·lb | 0.136 N·m |
| 1 ft·lb | 1.356 N·m |
| 2 ft·lb | 2.712 N·m |
| 3 ft·lb | 4.067 N·m |
| 5 ft·lb | 6.779 N·m |
| 10 ft·lb | 13.558 N·m |
| 20 ft·lb | 27.116 N·m |
| 30 ft·lb | 40.675 N·m |
| 40 ft·lb | 54.233 N·m |
| 50 ft·lb | 67.791 N·m |
| 60 ft·lb | 81.349 N·m |
| 70 ft·lb | 94.907 N·m |
| 80 ft·lb | 108.466 N·m |
| 90 ft·lb | 122.024 N·m |
| 100 ft·lb | 135.582 N·m |
| 250 ft·lb | 338.955 N·m |
| 500 ft·lb | 677.91 N·m |
| 750 ft·lb | 1,016.865 N·m |
| 1000 ft·lb | 1,355.82 N·m |
| 10000 ft·lb | 13,558.2 N·m |
| 100000 ft·lb | 135,582 N·m |
规则