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a.u. of energy
Symbol:  Eh 
Category:  Energy 
SI Equivalent:  4.35975×10-18 J
Dimension:  ML2T-2 
System:  a.u. 
 
Notes
1 a.u. of energy = 1 hartree = 2 rydbergs
Convert     Eh  
1 Eh =
Energy
  Symbol Unit Name
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  Eh  hartree 
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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Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

CNC Machining Design Guide

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

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

more publications