Therm to all other Energy conversions


The therm (symbol, thm) is a non-SI unit of heat energy equal to 100000 British thermal units. It is approximately the energy equivalent of burning 100 cubic feet (2.83 cubic metres) – often referred to as 1 CCF – of natural gas.

Since natural gas meters measure volume and not energy content, a therm factor is used by natural gas companies to convert the volume of gas used to its heat equivalent, and thus calculate the actual energy use. The therm factor is usually expressed in units of therms per CCF.

One therm is equal to about 105.5 megajoules , 25200 kilocalories, or 29.3 kilowatt-hours. One therm can also be provided by about 96.7 cubic feet (2.74 m 3 ) of natural gas

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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-hour {{watthour}}
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 (EC) {{thermec}}
Therm (US) {{thermus}}
Hartree energy {{hartree}}
Rydberg constant {{rydberg}}