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 = 13,558,200 erg
1 erg = 7.3756e-8 ft·lb
例子:
将15 脚转换为尔格：
15 ft·lb = 203,373,000 erg
| 脚 | 尔格 |
|---|---|
| 0.01 ft·lb | 135,582 erg |
| 0.1 ft·lb | 1,355,820 erg |
| 1 ft·lb | 13,558,200 erg |
| 2 ft·lb | 27,116,400 erg |
| 3 ft·lb | 40,674,600 erg |
| 5 ft·lb | 67,791,000 erg |
| 10 ft·lb | 135,582,000 erg |
| 20 ft·lb | 271,164,000 erg |
| 30 ft·lb | 406,746,000 erg |
| 40 ft·lb | 542,328,000 erg |
| 50 ft·lb | 677,910,000 erg |
| 60 ft·lb | 813,492,000 erg |
| 70 ft·lb | 949,074,000 erg |
| 80 ft·lb | 1,084,656,000 erg |
| 90 ft·lb | 1,220,238,000 erg |
| 100 ft·lb | 1,355,820,000 erg |
| 250 ft·lb | 3,389,550,000 erg |
| 500 ft·lb | 6,779,100,000 erg |
| 750 ft·lb | 10,168,650,000 erg |
| 1000 ft·lb | 13,558,200,000 erg |
| 10000 ft·lb | 135,582,000,000 erg |
| 100000 ft·lb | 1,355,820,000,000 erg |
规则