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**A.u. of Energy**

**A.u. of Energy (**is a unit in the category of

*E*)_{h}*Energy*. It is also known as hartrees. This unit is commonly used in the a.u. unit system. A.u. of Energy (

*E*) has a dimension of ML

_{h}^{2}T

^{-2}where M is mass, L is length, and T is time. It can be converted to the corresponding standard SI unit J by multiplying its value by a factor of 4.3597482E-018.

Other units in the category of Energy include Barrel Oil Equivalent (bboe), Bboe (barrel Oil Equivalent) (bboe), BeV (billion EV) (BeV), British Thermal Unit (ISO) (Btu (ISO)), British Thermal Unit (IT) (Btu (IT)), British Thermal Unit (mean) (Btu (mean)), British Thermal Unit (thermochemical) (Btu (therm.)), Calorie (15°C) (cal_{15}), Calorie (4°C) (cal_{4}), Calorie (diet Kilocalorie) (Cal, kcal), Calorie (IT) (International Steam Table) (cal (IT)), Calorie (mean) (cal_{mean}), Calorie (thermochemical) (cal (therm.)), Celsius-Heat Unit (Chu), Coulomb Volt (C-V), Cubic Centimeter-Atm (cm^{3}-atm), Cubic Foot Atm (ft^{3}-atm), Electronvolt (eV), Erg (erg), Foot-Pound Force (ft-lbf), Foot-Poundal (ft-pdl), Gigaelectronvolt (GeV), Gram Calorie (gram-cal), Hartree (*E _{h}*), Horsepower (550ft-Lbf/s)-Hour (Hp-h), Inch Pound Force (in-lbf), Joule (J), Kilocalorie (15°C) (kcal

_{15}), Kilocalorie (4°C) (kcal

_{4}), Kiloelectronvolt (keV), Kilojoule (kJ), Kiloton TNT Equivalent (kt (TNT)), Kilowatt-Hour (kWh), Megaelectronvolt (MeV), Megajoule (MJ), Megaton TNT Equivalent (Mt (TNT)), Newton Meter (N-m), Q Unit, Quad (quad), Quadrillion (quad), Rydberg (Ry), Tce (tonne Coal Equivalent) (tce), Therm (EEG), Therm (US), Thermie (15°C) (th

_{15 °C}), Toe (tonne Oil Equivalent) (toe), Ton TNT Equivalent (ton (TNT)), Tonne Coal Equivalent (tce), Tonne Oil Equivalent (toe), and Watt Hour (Wh).

**Additional Information**

**Related Glossary Pages**

Glossary: Units: Volume: Fluid Ounce (UK)

Glossary: Units: Electric Conductance: Statmho

Glossary: Units: Electric Current: A.u. of Electric Current

Glossary: Units: Velocity: Kilometer Per Hour

Glossary: Units: Length: Chain (Ramsden'S)

Glossary: Units: Linear Mass Density: Ounce (mass) Per Inch

Glossary: Units: Area: Square Hectometer

Glossary: Units: Angle: Radian

Glossary: Units: Power (Heat Flow): Abwatt (emu of Power)

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