The hartree is the atomic unit of energy, symbol (E_{h} or Ha). Plural name is hartrees.

Input | Output | Table | |
---|---|---|---|

1 ft-lb |
12 in-lb |
foot pounds to inch pounds | |

1 Nm |
0.7376 ft-lb |
newton meters to foot pounds | |

1 in-lb |
0.113 Nm |
inch pounds to newton meters | |

1 in-lb |
0.0833 ft-lb |
inch pounds to foot pounds | |

1 ft-lb |
1.3558179 Nm |
foot pounds to newton meters | |

1 l-atm |
101.325 J |
liter atmospheres to joules | |

1 in-lb |
15.999999461875 in-oz |
inch pounds to inch ounces | |

1 l-atm |
0.1013 kJ |
liter atmospheres to kilojoules | |

1 Nm |
3.72506E-7 hph |
newton meters to horsepower hours | |

1 PJ |
23884.58966275 TOE |
petajoules to tonnes of oil equivalent |

Hartree can convert to other units, such as Btu, calorie [15 °C], calorie [I.T.], Calorie [nutritional], calorie [thermochemical], dekatherm, electronvolt, erg, exajoule, femtojoule, foot pound, gigajoule, gigawatt hour, gram calorie, horsepower hour, inch ounce, inch pound, joule, kilogram calorie, kilojoule, kilowatt hour, liter atmosphere, megaelectronvolt, megajoule, megawatthour, microjoule, millijoule, nanojoule, newton meter, petajoule, picojoule, Q unit, quad, teraelectronvolt, terajoule, terawatthour, thermie, therm , tonne of coal equivalent, tonne of oil equivalent, ton [explosive], watthour, wattsecond and more. You can find the reference table below:

Hartree also canvert from other unit such as Btu, calorie [15 °C], calorie [I.T.], Calorie [nutritional], calorie [thermochemical], dekatherm, electronvolt, erg, exajoule, femtojoule, foot pound, gigajoule, gigawatt hour, gram calorie, horsepower hour, inch ounce, inch pound, joule, kilogram calorie, kilojoule, kilowatt hour, liter atmosphere, megaelectronvolt, megajoule, megawatthour, microjoule, millijoule, nanojoule, newton meter, petajoule, picojoule, Q unit, quad, teraelectronvolt, terajoule, terawatthour, thermie, therm , tonne of coal equivalent, tonne of oil equivalent, ton [explosive], watthour, wattsecond and more. You can find the reference table below:

Btu is the abbreviation of the British thermal unit. It is a traditional unit of energy equal to about 1055 joules.

Calorie [ 15 °C] is a unit of energy that the amount of energy required to warm on gram of air-free water from 14.5 °C to 15.5 °C at standard atmospheric presure (1 cal [15°C] = 4.1855 J).

Calorie is a pre-SI metric unit of energy, symbol "cal". Calorie [i.t.] is an International Stream Table calorie equal to 4.1868 joules.

Calorie [thermochemical] is a unit of energy use in thermochemistry.

Electronvolts (symbol eV; also written electron volt) is a unit of energy equal to approximately 1.602×10^{.19} joule.

Erg is a unit of energy and mechanical work in the the centimetre-gram-second (CGS) system of units, symbol "erg".

Exajoule is a unit of energy equal to 1.0E+18 joules, symbol "EJ". This unit comes from a combination of metric-prefix "exa" and SI derived unit of energy "joule".

Femtojoule is a unit of energy equal to 1.0E-15 joules, symbol "fJ". This unit comes from a combination of metric-prefix "femto" and SI derived unit of energy "joule".

Foot-pound or foot-pound force is a unit of energy in the Engineering and Gravitational System in United States customy and imperial unit of measure.

Gigajoule is a unit of energy equal to 1.0E+9 joules, symbol "GJ". This unit comes from a combination of metric-prefix "giga" and SI derived unit of energy "joule".

Gigawatt hour is a unit of energy equal to 1000 Megawatt hours, sysmbol "GWh". This unit comes form "giga" metric-prefix and "watt hour" unit of energy.

Gram calorie or small calorie (symbol: cal) approximates the energy needed to increase the temperature of 1 gram of water by 1 °C. This is about 4.2 joules.

Horsepower-hour (hph) is an outdated unit of energy, not used in the SI system of units.

Inch ounce is a unit of energy equal to about 0.007061552 joule, symbol "in-oz".

Inch pound is a unit of energy equal to about 0.112984829 joules, symbol "in-lb".

Joule is a derived unit of energy or work in the International System of Units, symbol "J".

kilogram calorie, dietary calorie, or food calorie (symbol: Cal) approximates the energy needed to increase the temperature of 1 kilogram of water by 1 °C. This is exactly 1,000 small calories or about 4.2 kilojoules.

Kilojoule is a unit of energy equal to 1000 joules, symbol "kJ". This unit comes from a combination of metric-prefix "kilo" and SI derived unit of energy "joule".

The kilowatt-hour (symbolized kWh) is a unit of energy equivalent to one kilowatt (1 kW) of power expended for one hour (1 h) of time.

Liter atmosphere is a unit of energy, symbole "l-atm", equal to 101.32500 joules.

Megaelectronvolt is a unit or energy equal 1 000 000 electronvolts, symbol "MeV".

Megajoule is a unit of energy equal to 1 000 000 joules, symbol "MJ". This unit comes from a combination of metric-prefix "mega" and SI derived unit of energy "joule".

Microjoule is a unit of energy equal to 1/1 000 000 joule, symbol "µJ". This unit comes from a combination of metric-prefix "micro" and SI derived unit of energy "joule".

Millijoule is a unit of energy equal to 1/1 000 joule, symbol "mJ". This unit comes from a combination of metric-prefix "milli" and SI derived unit of energy "joule".

Nanojoule is a unit of energy equal to 1/1 000 000 000 joule, symbol "nJ". This unit comes from a combination of metric-prefix "nano" and SI derived unit of energy "joule".

A newton metre is a unit of torque (also called "moment") in the SI system. The symbolic form is Nm or N·m. One newton metre is equal to the torque resulting from a force of one newton applied perpendicularly to a moment arm which is one metre long.

Petajoule is a unit of energy equal to 1.0E+15 joules, symbol "PJ". This unit comes from a combination of metric-prefix "peta" and SI derived unit of energy "joule".

Picojoule is a unit of energy equal to 1/1 000 000 000 000 joule, symbol "pJ". This unit comes from a combination of metric-prefix "pico" and SI derived unit of energy "joule".

A quad is a unit of energy equal to 10^{15} (a short-scale quadrillion) BTU,or 1.055 × 10^{18} joules (1.055 exajoules or EJ) in SI units.

Teraelectronvolt is a unit of energy equal to 10^{12} electronvolts, symbol "TeV". This unit comes form a combination of metrix-prefix "tera" and "electronvolt".

Terajoule is a unit of energy equal to 1.0E+12 joules, symbol "TJ". This unit comes from a combination of metric-prefix "tera" and SI derived unit of energy "joule".

Terawatthours is a unit of energy equal to 1000 Gigawatt hours, symbol "TWh". This unit comes from a combination fo metric-prefix "tera" and "watt hour" unit of energy.

Thermie (th) is a metric unit of heat energy, part of the meter-tonne-second system sometimes used by European engineers.

The therm (symbol th) is a non-SI unit of heat energy equal to 100,000 British thermal units (BTU).

Tonne of coal equivalent or ton of coal equivalent (TCE) is, unit of energy, a conventional value of 7 Gcal (IT) = 29.3076 GJ.

A ton of oil equivalent (TOE) is, unit of energy, a conventional value, based on the amount of energy released by burning one tonne of crude oil, of 41.868 GJ, 11.63 MWh, 1.28 TCE, 39.68 million BTU, or 6.6 - 8.0 actual barrels of oil (depending on actual

Watthour (symbolized Wh) is a unit of energy equivalent to one watt (1 W) of power expended for one hour (1 h) of time.