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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  
78.6 J =
Energy
  Symbol Unit Name
1.80286×1019  Eh  a.u. of energy 
1.28431×10-8  bboe  barrel oil equivalent 
1.28431×10-8  bboe  bboe (barrel oil equivalent) 
4.90582×1011  BeV  BeV (billion eV) 
7.44981×10-2  Btu (ISO)  British thermal unit (ISO) 
7.44984×10-2  Btu (IT)  British thermal unit (IT) 
7.4441×10-2  Btu (mean)  British thermal unit (mean) 
7.45483×10-2  Btu (therm.)  British thermal unit (thermochemical) 
18.7814  cal15  calorie (15°C) 
18.6943  cal4  calorie (4°C) 
1.88038×10-2  Cal, kcal  Calorie (diet kilocalorie) 
18.7736  cal (IT)  calorie (IT) (International Steam Table) 
18.7589  calmean  calorie (mean) 
18.7859  cal (therm.)  calorie (thermochemical) 
4.13863×10-2  Chu  Celsius-heat unit 
78.6  C-V  coulomb volt 
775.722  cm3-atm  cubic centimeter-atm 
2.73944×10-2  ft3-atm  cubic foot atm 
4.90582×1020  eV  electronvolt 
7.86×108  erg  erg 
57.9724  ft-lbf  foot-pound force 
1865.21  ft-pdl  foot-poundal 
4.90582×1011  GeV  gigaelectronvolt 
18.7736  gram-cal  gram calorie 
1.80286×1019  Eh  hartree 
2.9279×10-5  Hp-h  horsepower (550ft-lbf/s)-hour 
695.669  in-lbf  inch pound force 
1.87791×10-2  kcal15  kilocalorie (15°C) 
1.86943×10-2  kcal4  kilocalorie (4°C) 
4.90582×1017  keV  kiloelectronvolt 
7.86×10-2  kJ  kilojoule 
1.88038×10-11  kt (TNT)  kiloton TNT equivalent 
2.18333×10-5  kWh  kilowatt-hour 
4.90582×1014  MeV  megaelectronvolt 
7.86×10-5  MJ  megajoule 
1.88038×10-14  Mt (TNT)  megaton TNT equivalent 
78.6  N-m  newton meter 
7.45024×10-20    Q unit 
7.44984×10-17  quad  quad 
7.44984×10-17  quad  quadrillion 
3.60571×1019  Ry  rydberg 
2.68351×10-9  tce  tce (tonne coal equivalent) 
7.44984×10-7    therm (EEG) 
7.45162×10-7    therm (US) 
1.87791×10-5  th15 °C  thermie (15°C) 
1.87724×10-9  toe  toe (tonne oil equivalent) 
1.88038×10-8  ton (TNT)  ton TNT equivalent 
2.68351×10-9  tce  tonne coal equivalent 
1.87724×10-9  toe  tonne oil equivalent 
2.18333×10-2  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
7.86×108  dyn-cm  dyne-centimeter 
8.01497×105  gf-cm  gram force-centimeter 
8.01497  kgf-m  kilogram force-meter 
7860  N-cm  newton-centimeter 
78.6  N-m  newton-meter 
1.11307×104  ozf-in  ounce force-inch 
57.9724  lbf-ft  pound force-foot 
695.669  lbf-in  pound force-inch 
1865.21  pdl-ft  poundal-foot 
Glossary
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Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

CNC Machining Design Guide

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

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

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Wages, employment opportunities, and growth projections for STEM jobs.

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