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. | |
59 conversions, showing those commonly used | Show all
40.7 J =
| Energy | ||
| Symbol | Unit Name | |
| 6.65033×10-9 | bboe | barrel oil equivalent |
| 3.85762×10-2 | Btu (IT) | British thermal unit (IT) |
| 3.85464×10-2 | Btu (mean) | British thermal unit (mean) |
| 3.8602×10-2 | Btu (therm.) | British thermal unit (thermochemical) |
| 9.73684×10-3 | Cal, kcal | Calorie (diet kilocalorie) |
| 9.71356 | calmean | calorie (mean) |
| 9.72753 | cal (therm.) | calorie (thermochemical) |
| 2.54029×1020 | eV | electronvolt |
| 4.07×108 | erg | erg |
| 30.0188 | ft-lbf | foot-pound force |
| 965.826 | ft-pdl | foot-poundal |
| 1.5161×10-5 | Hp-h | horsepower (550ft-lbf/s)-hour |
| 9.72405×10-3 | kcal15 | kilocalorie (15°C) |
| 9.6801×10-3 | kcal4 | kilocalorie (4°C) |
| 4.07×10-2 | kJ | kilojoule |
| 9.73684×10-12 | kt (TNT) | kiloton TNT equivalent |
| 1.13056×10-5 | kWh | kilowatt-hour |
| 2.54029×1014 | MeV | megaelectronvolt |
| 4.07×10-5 | MJ | megajoule |
| 9.73684×10-15 | Mt (TNT) | megaton TNT equivalent |
| 1.38955×10-9 | tce | tce (tonne coal equivalent) |
| 3.85854×10-7 | therm (US) | |
| 9.73684×10-9 | ton (TNT) | ton TNT equivalent |
| 1.13056×10-2 | Wh | watt hour |
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