Frequently Asked Questions

What are Ccf, Mcf, Btu, and therms? How do I convert natural gas prices in dollars per Ccf or Mcf to dollars per Btu or therm?

BtuBritish thermal unit(s)
Ccf
—the volume of 100 cubic feet (cf)
M—one thousand (1,000)
MM—one million (1,000,000)
Mcf—the volume of 1,000 cubic feet
MMBtu—1,000,000 British thermal units
Therm—One therm equals 100,000 Btu, or 0.10 MMBtu

Natural gas may be priced in units of dollars per therm or dollars per cubic feet. The heat content of natural gas per physical unit (such as per cubic foot in the United States) is needed to convert these prices from one price basis to another. In 2016, the U.S. annual average heat content of natural gas for the residential, commercial, industrial, and transportation sectors was about 1,037 Btu per cubic foot. Therefore, 100 cubic feet (Ccf) of natural gas equals 103,700 Btu or 1.037 therms. One thousand cubic feet (Mcf) of natural gas equals 1.037 million Btu (MMBtu), 10.37 therms.

You can convert natural gas prices from one price basis to another with these formulas (assuming a heat content of natural gas of 1,037 Btu per cubic foot):
$ per Ccf divided by 1.037 equals $ per therm
$ per therm multiplied by 1.037 equals $ per Ccf
$ per Mcf divided by 1.037 equals $ per MMBtu
$ per Mcf divided by 10.37 equals $ per therm
$ per MMBtu multiplied by 1.037 equals $ per Mcf
$ per therm multiplied by 10.37 equals $ per Mcf

The heat content of natural gas may vary by location and by type of natural gas consumer, and it may vary over time. Consumers and analysts should contact natural gas distribution companies or natural gas suppliers for information on the heat content of the natural gas that they supply to their customers. Some natural gas distribution companies or utilities may provide this information on customers' bills.

Learn more:
Average annual and monthly heat content of natural gas consumed by state
Newly released heat content data allow for state-to-state natural gas comparisons
Natural Gas Conversion Calculator

Last updated: May 19, 2017


Other FAQs about Natural Gas

On This Page:

Coal

Conversion & Equivalents

Diesel

Electricity

Environment

Gasoline

General Energy

Natural Gas

Nuclear

Oil/Petroleum

Prices

Renewables

Full list of upcoming reports

Sign up for email notifications

Get the What's New RSS feed

Didn't find the answer to your question? Ask an energy expert.

(required)