# Power Conversions

Mechanical horsepower is commonly used to measure the maximum power of a car's engine in the United States or the UK. It is approximately equal to 746 watts.

A

watt is the standard unit of power. It is the power needed to do one joule of work per second. A typical incandescent light bulb uses 40-100 watts.

#### Power Conversion Tables

(some results are rounded)

1 BTU per Hour = |

2.9307 x 10^{-10} gigawatts |

0.00039301 horsepower |

0.00029307 kilowatts |

2.9307 x 10^{-7} megawatts |

0.00039847 metric horsepower |

8.3333 x 10^{-5} tons of refrigeration |

0.29307 watts |

1 Gigawatt = |

3.4121 x 10^{9} btus per hour |

1,341,022 horsepower |

1,000,000 kilowatts |

1,000 megawatts |

1,359,622 metric horsepower |

284,345 tons of refrigeration |

1 x 10^{9} watts |

1 Horsepower = |

2,544.4 btus per hour |

7.4570 x 10^{-7} gigawatts |

0.74570 kilowatts |

0.00074570 megawatts |

1.0139 metric horsepower |

0.21204 tons of refrigeration |

745.70 watts |

1 Kilowatt = |

3,412.1 btus per hour |

1 x 10^{-6} gigawatts |

1.3410 horsepower |

0.001 megawatts |

1.3596 metric horsepower |

0.28435 tons of refrigeration |

1,000 watts |

1 Megawatt = |

3,412,141 btus per hour |

0.001 gigawatts |

1,341.0 horsepower |

1,000 kilowatts |

1,359.6 metric horsepower |

284.35 tons of refrigeration |

1,000,000 watts |

1 Metric Horsepower = |

2,509.6 btus per hour |

7.3550 x 10^{-7} gigawatts |

0.98632 horsepower |

0.73550 kilowatts |

0.00073550 megawatts |

0.20914 tons of refrigeration |

735.50 watts |

1 Ton of Refrigeration = |

12,000 btus per hour |

3.5169 x 10^{-6} gigawatts |

4.7162 horsepower |

3.5169 kilowatts |

0.0035169 megawatts |

4.7816 metric horsepower |

3,516.9 watts |

1 Watt = |

3.4121 btus per hour |

1 x 10^{-9} gigawatts |

0.0013410 horsepower |

0.001 kilowatts |

1 x 10^{-6} megawatts |

0.0013596 metric horsepower |

0.00028435 tons of refrigeration |