Specifically 1013.2 btu per standard cubic foot, for pure methane.
Federal Energy Regulatory Commission
The average is about 20,000 BTU's per pound at standard temperature and pressure.
The energy content of natural gas is typically measured in cubic feet (cf) in the United States and in cubic meters (Nm3) in other countries. One cubic foot of natural gas produces approximately 1,000 BTU (British Thermal Units) of energy. Therefore, 1 Nm3 of natural gas is roughly equivalent to 35,315 BTU.
BTU should be a measure of heating content, so it will vary with composition. However, in the US, 1 cubic ft of natural gas = 1,028 BTU. 1 therm = 100,000 BTU 100 cf = 0.1 Mcf approximately 1 therm (th). or more exactly 0.0972 Mcf = 1 th. See natural gas under wikipedia.
For the purpose of gas rating 1040 btu's/ft3
btu of natural gas to btu of propane
Federal Energy Regulatory Commission
102,000 BTU = 1 ccf
Ther are 1,050 BTU in one cubic foot of natural gas.
natural gas
The average is about 20,000 BTU's per pound at standard temperature and pressure.
The energy content of natural gas is typically measured in cubic feet (cf) in the United States and in cubic meters (Nm3) in other countries. One cubic foot of natural gas produces approximately 1,000 BTU (British Thermal Units) of energy. Therefore, 1 Nm3 of natural gas is roughly equivalent to 35,315 BTU.
138,700 btu's
Natural gas has the highest BTU content when burned.
Natural gas varies in its composition from one source to another. Consequently, the answer will vary.
Natural gas has a heating value of about 1,000 BTU/ft3 (gross) or about 900 BTU/ft3 (net). Acttual values can range about 100 BTU/ft3 higher or lower than the average. So 1,750x106 BTU would be about 2,000 ft3
BTU should be a measure of heating content, so it will vary with composition. However, in the US, 1 cubic ft of natural gas = 1,028 BTU. 1 therm = 100,000 BTU 100 cf = 0.1 Mcf approximately 1 therm (th). or more exactly 0.0972 Mcf = 1 th. See natural gas under wikipedia.