扭矩是对可能导致对象绕轴旋转的力的量度。它是在牛顿 - 米特（N·M）中测量的。
1 J/rad = 0.738 ft·lb
1 ft·lb = 1.356 J/rad
例子:
将15 joule per radian转换为脚：
15 J/rad = 11.063 ft·lb
| joule per radian | 脚 |
|---|---|
| 0.01 J/rad | 0.007 ft·lb |
| 0.1 J/rad | 0.074 ft·lb |
| 1 J/rad | 0.738 ft·lb |
| 2 J/rad | 1.475 ft·lb |
| 3 J/rad | 2.213 ft·lb |
| 5 J/rad | 3.688 ft·lb |
| 10 J/rad | 7.376 ft·lb |
| 20 J/rad | 14.751 ft·lb |
| 30 J/rad | 22.127 ft·lb |
| 40 J/rad | 29.502 ft·lb |
| 50 J/rad | 36.878 ft·lb |
| 60 J/rad | 44.254 ft·lb |
| 70 J/rad | 51.629 ft·lb |
| 80 J/rad | 59.005 ft·lb |
| 90 J/rad | 66.38 ft·lb |
| 100 J/rad | 73.756 ft·lb |
| 250 J/rad | 184.39 ft·lb |
| 500 J/rad | 368.781 ft·lb |
| 750 J/rad | 553.171 ft·lb |
| 1000 J/rad | 737.561 ft·lb |
| 10000 J/rad | 7,375.61 ft·lb |
| 100000 J/rad | 73,756.103 ft·lb |
规则