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 quad = 778,126,890,000,147.5 ft·lb
1 ft·lb = 1.2851e-15 quad
例子:
将15 Quad转换为脚：
15 quad = 11,671,903,350,002,212 ft·lb
| Quad | 脚 |
|---|---|
| 0.01 quad | 7,781,268,900,001.476 ft·lb |
| 0.1 quad | 77,812,689,000,014.75 ft·lb |
| 1 quad | 778,126,890,000,147.5 ft·lb |
| 2 quad | 1,556,253,780,000,295 ft·lb |
| 3 quad | 2,334,380,670,000,442.5 ft·lb |
| 5 quad | 3,890,634,450,000,737.5 ft·lb |
| 10 quad | 7,781,268,900,001,475 ft·lb |
| 20 quad | 15,562,537,800,002,950 ft·lb |
| 30 quad | 23,343,806,700,004,424 ft·lb |
| 40 quad | 31,125,075,600,005,900 ft·lb |
| 50 quad | 38,906,344,500,007,380 ft·lb |
| 60 quad | 46,687,613,400,008,850 ft·lb |
| 70 quad | 54,468,882,300,010,330 ft·lb |
| 80 quad | 62,250,151,200,011,800 ft·lb |
| 90 quad | 70,031,420,100,013,270 ft·lb |
| 100 quad | 77,812,689,000,014,750 ft·lb |
| 250 quad | 194,531,722,500,036,860 ft·lb |
| 500 quad | 389,063,445,000,073,700 ft·lb |
| 750 quad | 583,595,167,500,110,600 ft·lb |
| 1000 quad | 778,126,890,000,147,500 ft·lb |
| 10000 quad | 7,781,268,900,001,475,000 ft·lb |
| 100000 quad | 77,812,689,000,014,760,000 ft·lb |
规则