# Frequently Asked Questions

# What are Ccf, Mcf, Btu, and therms? How do I convert prices in Ccf and Mcf to Btus and therms?

**C **— equals one hundred(100).

**Ccf **— equals the volume of 100 cubic feet (cf) of natural gas.

**M **— equals one thousand (1,000).

**MM **— equals one million (1,000,000).

**Mcf **— equals the volume of 1,000 cubic feet (cf) of natural gas.

**MMBtu **— equals 1,000,000 British thermal units (Btu) (One Btu is the heat required to raise the temperature of one pound of water by one degree Fahrenheit.).

**Therm **— One therm equals 100,000 Btu, or 0.10 MMBtu.

In 2011, the average heat content of natural gas for the residential, commercial, and industrial sectors was about 1,023 Btu per cf; one Ccf = 102,300 Btu or 1.023 therms; one Mcf = 1.023 MMBtu or 10.23 therms.

You can convert prices from one basis to another as follows:

$ per Ccf divided by 1.023 = $ per therm

$ per therm multiplied by 1.023 = $ per Ccf

$ per Mcf divided by 1.023 = $ per MMBtu

$ per Mcf divided by 10.23 = $ per therm

$ per MMBtu multiplied by 1.023 = $ per Mcf

$ per therm multiplied by 10.23 = $ per Mcf

Learn more:

Natural Gas Conversion Calculator

Last updated: March 20, 2013

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