Featured Figures

# Summary Table of Units of Energy Measurement

Below, a summary table of units of measurement used in the energy sector.

Name and abbreviation | Definition |

BarrelUnit of volume measurement for crude oil that is equivalent to approximately 159 liters (0.159 cubic meters)... ("bbl" or "b") | Unit of measurement for volume, specific to petroleum products. 1 barrel = 158.99 liters |

Barrel of oil equivalent (barrel of oil equivalent (boe)Unit of measurement used to convert an energy content into its equivalent in volume of oil... ) | 1 barrel of oil equivalent corresponds to the energy produced when a barrel of oil is burned. |

British Thermal Unit (BTU) | Imperial unit of measurement for energy. 1 BTU ≈ 1055 joules (J) |

Calorie (cal), thermie (th) | Former unit of measurement for energy. 1 calorie = 4.184 joules (J) 1 thermie = 1 million calories |

Cubic foot (CF) | Imperial unit of measurement for volume. 1 cubic foot = 28.32 liters (l) |

Cubic meter (m^{3}) |
Unit of measurement for volume. |

Cubic meter per second (m^{3}/s) |
Unit of measurement for flow. |

Degree Celsius (°C) | Unit of measurement for temperature, derived from the International System of Units. |

Gallon (gal) | Imperial unit of measurement for volume. 1 U.K. gal = 4.546 liters (l); 1 U.S. gallon = 3.785 liters (l) |

Horsepower (hp) | Unit of measurement for powerIn physics, power is the amount of energy supplied by a system per unit time. In simpler terms, power can be viewed as energy output...
1 horsepower = 735.5 watts (W) |

JouleA derived unit of energy, work or amount of heat in the International System of Units. Its symbol is J... (J) | Official unit of measurement for energy. |

Kilowatt-hour (kWh) | Commonly used unit of measurement for energy kilowatt-hour = 3.6 × 10 ^{6} joules (J) |

Meter per second (m/s) | Unit of measurement for speed. |

Stere (st) | Unit of measurement for a volume of wood. 1 stere = 1 cubic meter of stacked logs, including the empty spaces between them |

Ton (t) | Unit of measurement for weight. |

Ton of coal equivalent (tce)Unit of energy measurement corresponding to the energy produced by the combustion of a ton of coal... | 1 ton of coalCoal is ranked by its degree of transformation or maturity, increasing in carbon content from...
equivalent equals the energy produced when a ton of coal is burned. 1 ton of coal equivalent = 0.66 ton of oil equivalent (toe)Unit of energy measurement corresponding to the energy produced by the combustion of a ton of oil... (toe), on average |

Ton of oil equivalent (toe) | 1 ton of oil equivalent equals the energy produced when a ton of oil is burned. |

WattThe watt (symbol W) is the derived unit of power (see definition) in the International System of Units (SI)... (W) | Official unit of measurement for power. |