Watt-hour to all other Energy conversions


A watt-hour is a unit of energy. It is the amount of energy an item consumes over a given timeframe; a way to measure the amount of work generated or performed.

Watt hours are generally measured in kilowatt–hours.

  • Watt-hour is commonly used in electric applications.
  • An energy expenditure of 1 Wh represents 3600 joules (3.600 x 103 J).



The watt-hour is rarely used to express energy in any form other than electrical. A quantity of gasoline, oil, or coal contains potential energy that is liberated when the fuel is burned. The heat energy resulting from combustion of such fuels is usually expressed in joules according to the International System of Units (SI) or in British thermal units (Btu) according to the foot-pound-second (fps) or English system. If this energy is used to operate an electric generator, the output of the generator over a certain period of time can be expressed in watt-hours.

Enter your value in Watt–hour


Check your output in all other similar units

Standard Units
Joule {{joule}}
Gigajoule {{gigajoule}}
Megajoule {{megajoule}}
Kilojoule {{kilojoule}}
Millijoule {{millijoule}}
Microjoule {{microjoule}}
Nanojoule {{nanojoule}}
Attojoule {{attojoule}}
Megaelectron-volt {{megaelectronvolt}}
Kiloelectron-volt {{kiloelectronvolt}}
Electron-volt {{electronvolt}}
Erg {{erg}}
Other Units
Gigawatt-hour {{gigawatthour}}
Megawatt-hour {{megawatthour}}
Kilowatt-hour {{kilowatthour}}
Kilowatt-second {{kilowattsec}}
Watt-second {{wattsec}}
Newton meter {{newtonmeter}}
Horsepower hour {{horsepowerhour}}
Horsepower (metric) hour {{horsepowermetrichour}}
Kilocalorie (IT) {{kilocalorieit}}
Kilocalorie (th) {{kilocalorieth}}
Calorie (IT) {{calorieit}}
Calorie (th) {{calorieth}}
Calorie (Nutritional) {{calorie}}
Btu (IT) {{btuit}}
Btu (th) {{btuth}}
Mega Btu (IT) {{megabtuit}}
Ton-hour (refrigeration) {{tonhour}}
Fuel oil equivalent {{fueloilequivalent}}
Gigaton {{gigaton}}
Megaton {{megaton}}
Kiloton {{kiloton}}
Ton {{ton}}
Dyne centimeter {{dyne}}
Gram-force meter {{gramforcemeter}}
Gram-force centimeter {{gramforcecentimeter}}
Kilogram-force centimeter {{kilogramforcecentimeter}}
Kilogram-force meter {{kilogramforcemeter}}
Kilopond meter {{kilopondmeter}}
Pound-force foot {{poundforcefoot}}
Pound-force inch {{poundforceinch}}
Ound-force inch {{oundforceinch}}
Foot-pound {{footpound}}
Inch-pound {{inchpound}}
Inch-ound {{inchound}}
Poundal foot {{poundalfoot}}
Therm {{therm}}
Therm (EC) {{thermec}}
Therm (US) {{thermus}}
Hartree energy {{hartree}}
Rydberg constant {{rydberg}}