Conversion of energy units joule J newtonmeter Nm wattsecond unit

• Conversion of work, and quantity of energy units •
Definition: The SI unit of energy E = work W is the joule. 1 J = 1 Nm = 1 Ws.
E = W = P × t.
Energy can not be produced, but only transformed.
The energy of a system itself can not be measured. It will be calculated.

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atomic energy unit
British thermal units (4 °C)
British thermal units (16 °C)
British thermal units (mean)
BTU (mean)
BTU (thermal)
BTU (int)
calories
calories (int)
calories (mean)
calories (therm)
calories 16 °C
calories 20 °C
cals
Celsius heat unit (int.)
cubic centimeter atmospheres
cubic foot atmospheres
cubic meter atmospheres
dutys
dyne centimeters
electron volts
ergs
foot-grains
foot-poundals
foot-pounds (force)
gram calories (mean)
horsepower hours
horsepower hours (metric)
inch pounds
joules = Nm = Ws
joules (international)
kilocalories
kilogram calories (int.)
kilogram force meters
kilojoules
kilowatt hours
kilowatt minutes
kilowatt seconds
megawatt hours
newton meters
therms (EC)
therms (US)
watt hours
watt seconds
reset

Conversions of other energy units

Energy conversion chart

Unit Name	Symbol	SI Equivalent J
atomic unit of energy	E h	4.35975×10^-18 J
barrel oil equivalent	bboe	6.12×10⁺⁹ J
boe (barrel oil equivalent)	bboe	6.12×10⁺⁹ J
BeV (billion eV)	BeV	1.60218×10^-10 J
British thermal unit (ISO)	Btu (ISO)	1055.06 J
British thermal unit (IT)	Btu (IT)	1055.055 J
British thermal unit (mean)	Btu (mean)	1055.87 J
British thermal unit (thermochemical)	Btu (therm.)	1054.350 J
calorie (4 °C)	cal 4	4.2045 J
calorie (16 °C)	cal 16	4.185 J
calorie (diet kilocalorie)	Cal, kcal	4180 J
calorie (IT) (International Steam Table)	cal (IT)	4.18674 J
calorie (mean)	cal mean	4.19002 J
calorie (thermochemical)	cal (therm.)	4.184 J
Celsius-heat unit	Chu	1899.18 J
coulomb volt	C-V	1 J
cubic centimeter-atm	c³-atm	0.101325 J
cubic foot atm	ft³-atm	2869.2 J
electronvolt	eV	1.602177×10^-19 J
erg	erg	1×10^-7 J
foot-pound force	ft-lbf	1.35582 J
foot-poundal	ft-pdl	4.21401×10^-2 J
gigaelectronvolt	GeV	1.60218×10^-10 J
gram calorie	gram-cal	4.18674 J
hartree	E h	4.35975×10^-18 J
horsepower (550 ft-lbf/s)-hour	Hp-h	2.68452×10⁺⁶ J
inch pound force	in-lbf	0.112985 J
joule	J	1 J
kilocalorie (4 °C)	kcal 4	4204.5 J
kilocalorie (16 °C)	kcal 16	4185.5 J
kiloelectronvolt	keV	1.60218×10^-16 J
kilojoule	kJ	1000 J
kiloton TNT equivalent	kt (TNT)	4.18×¹² J
kilowatt-hour	kWh	3.6×⁶ J
megaelectronvolt	MeV	1.60218×10^-13 J
megajoule	MJ	1×⁶ J
megaton TNT equivalent	Mt (TNT)	4.18×10¹⁵ J
newton meter	Nm	1 J
Q unit		1.05506×10²¹ J
quadrillion, quad	quad	1.055056×10¹⁸ J
rydberg	Ry	2.17987×10^-18 J
tce (tonne coal equivalent)	tce	2.929×10¹⁰ J
therm (EC)		1.05506×10⁸ J
therm (US)		1.054804×10⁸ J
thermie (16 °C)	th 16°	4.1855×10⁶ J
toe (tonne oil equivalent)	toe	4.187×10¹⁰ J
ton TNT equivalent	ton (TNT)	4.18×10⁹ J
tonne coal equivalent	tce	2.929×10¹⁰ J
tonne oil equivalent	toe	4.187×10¹⁰ J
watt hour	Wh	3600 J
watt second	Ws	1 J