Cubic foot

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A cubic foot is an Imperial / U.S. customary (non-metric) unit of volume, used in the United States, Canada and the UK. It is defined as the volume of a cube with sides of 1 foot (0.3048 m) in length.

Symbols

There is no universally agreed symbol but the following are used:

cubic feet, cubic foot, cubic ft
cu ft, cu feet, cu foot
ft³, feet³, foot³
feet^3, foot^3, ft^3
feet/-3, foot/-3, ft/-3

CCF for 100 cubic feet (C denotes centum, hundred. Used in the billing of natural gas and water delivered to households.)
MCF for 1,000 cubic feet (M denotes mil, thousand)
MMCF for 1,000,000 cubic feet
BCF for 1,000,000,000 cubic feet
TCF for 1 trillion cubic feet. Used in the oil and gas industry. The term trillion in this case refers to 10¹², the short scale definition employed by most English speaking countries.

Conversions

1 cubic foot is equivalent to:

1728 cubic inches
28.316846592 litres or 0.028316846592 cubic metres
≈ 7.48051948 U.S. liquid gallons (exactly: 576/77 or 7480512/999999)
≈ 957.50649350 U.S. fluid ounces (exactly: 73728/77)
≈ 6.22883546 Imperial gallons or ≈ 996.61367 Imperial fluid ounces
≈ 0.037037 cubic yards (exactly: 1/27)
≈ 0.803563913 U.S. bushels
≈ 0.1781076 oil barrels

Standard cubic foot

A standard cubic foot (abbreviated scf) is a measure of quantity of gas, sometimes but not always defined as a cubic foot of volume at 60 degrees Fahrenheit and 14.7 pounds per square inch (PSI) of pressure. See standard temperature and pressure.

See also

1 E-2 m³ for a comparison with other volumes
Orders of magnitude (volume)
Conversion of units
Cube (arithmetic), cube root
Square foot

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Last updated on Wednesday February 13, 2008 at 14:07:16 PST (GMT -0800)
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