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joule
Symbol:  J 
Category:  Energy 
SI Equivalent:  1 J
Dimension ML2T-2 
System:  SI 
 
Notes
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  
27.0 J =
Energy
  Symbol Unit Name
6.19302×1018  Eh  a.u. of energy 
4.41176×10-9  bboe  barrel oil equivalent 
4.41176×10-9  bboe  bboe (barrel oil equivalent) 
1.68521×1011  BeV  BeV (billion eV) 
2.5591×10-2  Btu (ISO)  British thermal unit (ISO) 
2.55911×10-2  Btu (IT)  British thermal unit (IT) 
2.55713×10-2  Btu (mean)  British thermal unit (mean) 
2.56082×10-2  Btu (therm.)  British thermal unit (thermochemical) 
6.45161  cal15  calorie (15°C) 
6.42169  cal4  calorie (4°C) 
6.45933×10-3  Cal, kcal  Calorie (diet kilocalorie) 
6.44893  cal (IT)  calorie (IT) (International Steam Table) 
6.44388  calmean  calorie (mean) 
6.45315  cal (therm.)  calorie (thermochemical) 
1.42167×10-2  Chu  Celsius-heat unit 
27  C-V  coulomb volt 
266.469  cm3-atm  cubic centimeter-atm 
9.41029×10-3  ft3-atm  cubic foot atm 
1.68521×1020  eV  electronvolt 
2.7×108  erg  erg 
19.9142  ft-lbf  foot-pound force 
640.72  ft-pdl  foot-poundal 
1.68521×1011  GeV  gigaelectronvolt 
6.44893  gram-cal  gram calorie 
6.19302×1018  Eh  hartree 
1.00577×10-5  Hp-h  horsepower (550ft-lbf/s)-hour 
238.97  in-lbf  inch pound force 
6.45084×10-3  kcal15  kilocalorie (15°C) 
6.42169×10-3  kcal4  kilocalorie (4°C) 
1.68521×1017  keV  kiloelectronvolt 
2.7×10-2  kJ  kilojoule 
6.45933×10-12  kt (TNT)  kiloton TNT equivalent 
7.5×10-6  kWh  kilowatt-hour 
1.68521×1014  MeV  megaelectronvolt 
2.7×10-5  MJ  megajoule 
6.45933×10-15  Mt (TNT)  megaton TNT equivalent 
27  N-m  newton meter 
2.55924×10-20    Q unit 
2.55911×10-17  quad  quad 
2.55911×10-17  quad  quadrillion 
1.2386×1019  Ry  rydberg 
9.21816×10-10  tce  tce (tonne coal equivalent) 
2.55911×10-7    therm (EEG) 
2.55972×10-7    therm (US) 
6.45084×10-6  th15 °C  thermie (15°C) 
6.44853×10-10  toe  toe (tonne oil equivalent) 
6.45933×10-9  ton (TNT)  ton TNT equivalent 
9.21816×10-10  tce  tonne coal equivalent 
6.44853×10-10  toe  tonne oil equivalent 
7.5×10-3  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
2.7×108  dyn-cm  dyne-centimeter 
2.75323×105  gf-cm  gram force-centimeter 
2.75323  kgf-m  kilogram force-meter 
2700  N-cm  newton-centimeter 
27  N-m  newton-meter 
3823.52  ozf-in  ounce force-inch 
19.9142  lbf-ft  pound force-foot 
238.97  lbf-in  pound force-inch 
640.72  pdl-ft  poundal-foot 
Glossary
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