功率是完成工作或能量转移的速度。它以瓦（w）为单位进行测量。
1 GW = 239,005.736 kcal/s
1 kcal/s = 4.1840e-6 GW
例子:
将15 gigawatt转换为千瓦时第二：
15 GW = 3,585,086.042 kcal/s
| gigawatt | 千瓦时第二 |
|---|---|
| 0.01 GW | 2,390.057 kcal/s |
| 0.1 GW | 23,900.574 kcal/s |
| 1 GW | 239,005.736 kcal/s |
| 2 GW | 478,011.472 kcal/s |
| 3 GW | 717,017.208 kcal/s |
| 5 GW | 1,195,028.681 kcal/s |
| 10 GW | 2,390,057.361 kcal/s |
| 20 GW | 4,780,114.723 kcal/s |
| 30 GW | 7,170,172.084 kcal/s |
| 40 GW | 9,560,229.446 kcal/s |
| 50 GW | 11,950,286.807 kcal/s |
| 60 GW | 14,340,344.168 kcal/s |
| 70 GW | 16,730,401.53 kcal/s |
| 80 GW | 19,120,458.891 kcal/s |
| 90 GW | 21,510,516.252 kcal/s |
| 100 GW | 23,900,573.614 kcal/s |
| 250 GW | 59,751,434.034 kcal/s |
| 500 GW | 119,502,868.069 kcal/s |
| 750 GW | 179,254,302.103 kcal/s |
| 1000 GW | 239,005,736.138 kcal/s |
| 10000 GW | 2,390,057,361.377 kcal/s |
| 100000 GW | 23,900,573,613.767 kcal/s |
规则