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 BTU = 10,550,600,000 erg
1 erg = 9.4781e-11 BTU
例子:
将15 英国热单元转换为尔格：
15 BTU = 158,259,000,000 erg
| 英国热单元 | 尔格 |
|---|---|
| 0.01 BTU | 105,506,000 erg |
| 0.1 BTU | 1,055,060,000 erg |
| 1 BTU | 10,550,600,000 erg |
| 2 BTU | 21,101,200,000 erg |
| 3 BTU | 31,651,800,000 erg |
| 5 BTU | 52,753,000,000 erg |
| 10 BTU | 105,506,000,000 erg |
| 20 BTU | 211,012,000,000 erg |
| 30 BTU | 316,518,000,000 erg |
| 40 BTU | 422,024,000,000 erg |
| 50 BTU | 527,530,000,000 erg |
| 60 BTU | 633,036,000,000 erg |
| 70 BTU | 738,542,000,000 erg |
| 80 BTU | 844,048,000,000 erg |
| 90 BTU | 949,554,000,000 erg |
| 100 BTU | 1,055,060,000,000 erg |
| 250 BTU | 2,637,650,000,000 erg |
| 500 BTU | 5,275,300,000,000 erg |
| 750 BTU | 7,912,950,000,000 erg |
| 1000 BTU | 10,550,600,000,000 erg |
| 10000 BTU | 105,506,000,000,000 erg |
| 100000 BTU | 1,055,060,000,000,000 erg |
规则