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hartree
Symbol:  Eh 
Category:  Energy 
SI Equivalent:  4.35975×10-18 J
Dimension:  ML2T-2 
System:  a.u. 
 
Notes
Named after D. R. Hartree.
1 hartree = 2 rydbergs
Convert     Eh  
1 Eh =
Energy
  Symbol Unit Name
1  Eh  a.u. of energy 
7.12377×10-28  bboe  barrel oil equivalent 
7.12377×10-28  bboe  bboe (barrel oil equivalent) 
2.72114×10-8  BeV  BeV (billion eV) 
4.13223×10-21  Btu (ISO)  British thermal unit (ISO) 
4.13224×10-21  Btu (IT)  British thermal unit (IT) 
4.12906×10-21  Btu (mean)  British thermal unit (mean) 
4.13501×10-21  Btu (therm.)  British thermal unit (thermochemical) 
1.04176×10-18  cal15  calorie (15°C) 
1.03692×10-18  cal4  calorie (4°C) 
1.043×10-21  Cal, kcal  Calorie (diet kilocalorie) 
1.04132×10-18  cal (IT)  calorie (IT) (International Steam Table) 
1.04051×10-18  calmean  calorie (mean) 
1.042×10-18  cal (therm.)  calorie (thermochemical) 
2.29559×10-21  Chu  Celsius-heat unit 
4.35975×10-18  C-V  coulomb volt 
4.30274×10-17  cm3-atm  cubic centimeter-atm 
1.5195×10-21  ft3-atm  cubic foot atm 
27.2114  eV  electronvolt 
4.35975×10-11  erg  erg 
3.21559×10-18  ft-lbf  foot-pound force 
1.03458×10-16  ft-pdl  foot-poundal 
2.72114×10-8  GeV  gigaelectronvolt 
1.04132×10-18  gram-cal  gram calorie 
1.62403×10-24  Hp-h  horsepower (550ft-lbf/s)-hour 
3.8587×10-17  in-lbf  inch pound force 
4.35975×10-18  J  joule 
1.04163×10-21  kcal15  kilocalorie (15°C) 
1.03692×10-21  kcal4  kilocalorie (4°C) 
2.72114×10-2  keV  kiloelectronvolt 
4.35975×10-21  kJ  kilojoule 
1.043×10-30  kt (TNT)  kiloton TNT equivalent 
1.21104×10-24  kWh  kilowatt-hour 
2.72114×10-5  MeV  megaelectronvolt 
4.35975×10-24  MJ  megajoule 
1.043×10-33  Mt (TNT)  megaton TNT equivalent 
4.35975×10-18  N-m  newton meter 
4.13246×10-39    Q unit 
4.13224×10-36  quad  quad 
4.13224×10-36  quad  quadrillion 
2  Ry  rydberg 
1.48848×10-28  tce  tce (tonne coal equivalent) 
4.13224×10-26    therm (EEG) 
4.13323×10-26    therm (US) 
1.04163×10-24  th15 °C  thermie (15°C) 
1.04126×10-28  toe  toe (tonne oil equivalent) 
1.043×10-27  ton (TNT)  ton TNT equivalent 
1.48848×10-28  tce  tonne coal equivalent 
1.04126×10-28  toe  tonne oil equivalent 
1.21104×10-21  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
4.35975×10-11  dyn-cm  dyne-centimeter 
4.44571×10-14  gf-cm  gram force-centimeter 
4.44571×10-19  kgf-m  kilogram force-meter 
4.35975×10-16  N-cm  newton-centimeter 
4.35975×10-18  N-m  newton-meter 
6.17392×10-16  ozf-in  ounce force-inch 
3.21559×10-18  lbf-ft  pound force-foot 
3.8587×10-17  lbf-in  pound force-inch 
1.03458×10-16  pdl-ft  poundal-foot 
Glossary
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Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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A white paper to assist in the evaluation of 3D scanning hardware solutions.

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Optimize your designs, reduce machining time, and lower your costs.

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