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Symbol:  J 
Category:  Energy 
SI Equivalent:  1 J
Dimension ML2T-2 
System:  SI 
Named after the English physicist James Prescott Joule (1818-1889), the joule is the basic unit of work or energy in the SI system. It is equal to the work done by a force of 1 newton with the point of application displaced by 1 meter in the direction of the force.
Convert     J  
46.4 J =
  Symbol Unit Name
1.06428×1019  Eh  a.u. of energy 
7.5817×10-9  bboe  barrel oil equivalent 
7.5817×10-9  bboe  bboe (barrel oil equivalent) 
2.89606×1011  BeV  BeV (billion eV) 
4.39785×10-2  Btu (ISO)  British thermal unit (ISO) 
4.39787×10-2  Btu (IT)  British thermal unit (IT) 
4.39448×10-2  Btu (mean)  British thermal unit (mean) 
4.40082×10-2  Btu (therm.)  British thermal unit (thermochemical) 
11.0872  cal15  calorie (15°C) 
11.0358  cal4  calorie (4°C) 
1.11005×10-2  Cal, kcal  Calorie (diet kilocalorie) 
11.0826  cal (IT)  calorie (IT) (International Steam Table) 
11.0739  calmean  calorie (mean) 
11.0899  cal (therm.)  calorie (thermochemical) 
2.44316×10-2  Chu  Celsius-heat unit 
46.4  C-V  coulomb volt 
457.932  cm3-atm  cubic centimeter-atm 
1.61718×10-2  ft3-atm  cubic foot atm 
2.89606×1020  eV  electronvolt 
4.64×108  erg  erg 
34.2229  ft-lbf  foot-pound force 
1101.09  ft-pdl  foot-poundal 
2.89606×1011  GeV  gigaelectronvolt 
11.0826  gram-cal  gram calorie 
1.06428×1019  Eh  hartree 
1.72843×10-5  Hp-h  horsepower (550ft-lbf/s)-hour 
410.675  in-lbf  inch pound force 
1.10859×10-2  kcal15  kilocalorie (15°C) 
1.10358×10-2  kcal4  kilocalorie (4°C) 
2.89606×1017  keV  kiloelectronvolt 
4.64×10-2  kJ  kilojoule 
1.11005×10-11  kt (TNT)  kiloton TNT equivalent 
1.28889×10-5  kWh  kilowatt-hour 
2.89606×1014  MeV  megaelectronvolt 
4.64×10-5  MJ  megajoule 
1.11005×10-14  Mt (TNT)  megaton TNT equivalent 
46.4  N-m  newton meter 
4.3981×10-20    Q unit 
4.39787×10-17  quad  quad 
4.39787×10-17  quad  quadrillion 
2.12856×1019  Ry  rydberg 
1.58416×10-9  tce  tce (tonne coal equivalent) 
4.39787×10-7    therm (EEG) 
4.39892×10-7    therm (US) 
1.10859×10-5  th15 °C  thermie (15°C) 
1.10819×10-9  toe  toe (tonne oil equivalent) 
1.11005×10-8  ton (TNT)  ton TNT equivalent 
1.58416×10-9  tce  tonne coal equivalent 
1.10819×10-9  toe  tonne oil equivalent 
1.28889×10-2  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
4.64×108  dyn-cm  dyne-centimeter 
4.73148×105  gf-cm  gram force-centimeter 
4.73148  kgf-m  kilogram force-meter 
4640  N-cm  newton-centimeter 
46.4  N-m  newton-meter 
6570.79  ozf-in  ounce force-inch 
34.2229  lbf-ft  pound force-foot 
410.675  lbf-in  pound force-inch 
1101.09  pdl-ft  poundal-foot