Question: how many cubic feet of natural gas is in a therm?
Answer: The volume of the gas is calculated as if measured at standard temperature and pressure (STP). 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 m3) of natural gas.