Cubic foot

The cubic foot is an imperial and US customary (non-metric) unit of volume, used in the United States, Canada and the United Kingdom. It is defined as the volume of a cube with sides of one foot (0.3048 m) in length.

1 cubic foot	= 1728 cubic inches
	=1⁄27 of a cubic yard
		≈ 0.037037 cu yd
	=0.028316846592 cubic metres
		=28.316846592 litres
	=576⁄77 US fluid gallons
		=7480512⁄999999 US fl gal
		≈ 7.48051948 US fl gal
	= 73728⁄77 US fluid ounces
		≈ 957.50649350 US fl oz
	≈ 6.22883546 imperial gallons
	≈ 996.61367 imperial fluid ounces
	≈ 0.803563913 U.S. bushels
	≈ 0.1781076 oil barrels

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 ft

• 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 (28,000 m³)
• BCF for a billion cubic feet^[1]
• TCF for a trillion cubic feet.^[1][2]

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

Notes

1. ^ ^{a b} The terms billion and trillion as used here refer to the short scale definitions, 10⁹ and 10¹² respectively.
2. ^ Used in the oil and gas industry.

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