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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  
12.0 J =
Energy
  Symbol Unit Name
2.75245×1018  Eh  a.u. of energy 
1.96078×10-9  bboe  barrel oil equivalent 
1.96078×10-9  bboe  bboe (barrel oil equivalent) 
7.48981×1010  BeV  BeV (billion eV) 
1.13738×10-2  Btu (ISO)  British thermal unit (ISO) 
1.13738×10-2  Btu (IT)  British thermal unit (IT) 
1.1365×10-2  Btu (mean)  British thermal unit (mean) 
1.13814×10-2  Btu (therm.)  British thermal unit (thermochemical) 
2.86738  cal15  calorie (15°C) 
2.85408  cal4  calorie (4°C) 
2.87081×10-3  Cal, kcal  Calorie (diet kilocalorie) 
2.86619  cal (IT)  calorie (IT) (International Steam Table) 
2.86395  calmean  calorie (mean) 
2.86807  cal (therm.)  calorie (thermochemical) 
6.31852×10-3  Chu  Celsius-heat unit 
12  C-V  coulomb volt 
118.431  cm3-atm  cubic centimeter-atm 
4.18235×10-3  ft3-atm  cubic foot atm 
7.48981×1019  eV  electronvolt 
1.2×108  erg  erg 
8.85075  ft-lbf  foot-pound force 
284.764  ft-pdl  foot-poundal 
7.48981×1010  GeV  gigaelectronvolt 
2.86619  gram-cal  gram calorie 
2.75245×1018  Eh  hartree 
4.47007×10-6  Hp-h  horsepower (550ft-lbf/s)-hour 
106.209  in-lbf  inch pound force 
2.86704×10-3  kcal15  kilocalorie (15°C) 
2.85408×10-3  kcal4  kilocalorie (4°C) 
7.48981×1016  keV  kiloelectronvolt 
1.2×10-2  kJ  kilojoule 
2.87081×10-12  kt (TNT)  kiloton TNT equivalent 
3.33333×10-6  kWh  kilowatt-hour 
7.48981×1013  MeV  megaelectronvolt 
1.2×10-5  MJ  megajoule 
2.87081×10-15  Mt (TNT)  megaton TNT equivalent 
12  N-m  newton meter 
1.13744×10-20    Q unit 
1.13738×10-17  quad  quad 
1.13738×10-17  quad  quadrillion 
5.50491×1018  Ry  rydberg 
4.09696×10-10  tce  tce (tonne coal equivalent) 
1.13738×10-7    therm (EEG) 
1.13765×10-7    therm (US) 
2.86704×10-6  th15 °C  thermie (15°C) 
2.86601×10-10  toe  toe (tonne oil equivalent) 
2.87081×10-9  ton (TNT)  ton TNT equivalent 
4.09696×10-10  tce  tonne coal equivalent 
2.86601×10-10  toe  tonne oil equivalent 
3.33333×10-3  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
1.2×108  dyn-cm  dyne-centimeter 
1.22366×105  gf-cm  gram force-centimeter 
1.22366  kgf-m  kilogram force-meter 
1200  N-cm  newton-centimeter 
12  N-m  newton-meter 
1699.34  ozf-in  ounce force-inch 
8.85075  lbf-ft  pound force-foot 
106.209  lbf-in  pound force-inch 
284.764  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.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Essentials of Manufacturing

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

Mechanical Engineers Outlook

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

more publications