Cubic foot
The cubic foot (symbol ft^{3})^{[1]} is an imperial and US customary (non-metric) unit of volume, used in the United States, and partially in Canada, and the United Kingdom. It is defined as the volume of a cube with sides of one foot (0.3048 m) in length. Its volume is 28.3168 liters or about ^{1}⁄_{35} of a cubic meter.
At 60 °F (16 °C), a cubic foot of water weighs 62.36630 pounds (28.28888 kg).
Contents
Conversions
1 cubic foot | = 1728 cubic inches | |
= ^{1}⁄_{27} of a cubic yard | ||
≈ 0.037037 cu yd | ||
= 0.028316846592 cubic meters | ||
= 28.316846592 liters | ||
= ^{576}⁄_{77} US fluid gallons | ||
= ^{1728}⁄_{231} US fl gal | ||
≈ 7.4805 US fl gal | ||
= ^{73728}⁄_{77} US fluid ounces | ||
≈ 957.51 US fl oz | ||
≈ 6.2288 imperial gallons | ||
≈ 996.61 imperial fluid ounces | ||
≈ 0.80356 US bushels | ||
≈ 0.17811 oil barrel |
Symbols and abbreviations
The IEEE symbol for the cubic foot is ft^{3}.^{[2]} The following abbreviations are used: cubic feet, cubic foot, cubic ft, cu feet, cu foot, cu ft, cu.ft, cuft, cb ft, cb.ft, cbft, cbf, feet^{3}, foot^{3}, ft^{3}, feet/-3, foot/-3, ft/-3.
Larger multiples are in common usage in commerce and industry in the USA:
- CCF
- HCF
- Centum, or hundred, cubic feet; i.e., 100 ft^{3}. Latin centum meaning a hundred. Used in the billing of natural gas and water delivered to households.
- MCF
- Mille cubic feet; i.e., 1000 ft^{3}. Latin mille meaning a thousand.
- MMCF
- Mille mille cubic feet; i.e., 1000000 ft^{3}.
- MMCFD
- MMCF per day; i.e., 1000000 ft^{3}/day. Used in the oil and gas industry.
- BCF
- TMC
- Billion, or thousand million cubic feet; i.e., 1000000000 ft^{3}. TMC is usually used for referring to storage capacity and actual storage volume of storage dams.
- TCF
- Trillion cubic feet; i.e, 1000000000000 ft^{3}. Used in the oil and gas industry.
Cubic foot per second
The IEEE symbol for the cubic foot per second is ft^{3}/s.^{[3]} The following abbreviations are used:
- cu ft/s
- ft^{3}/sec
- CFS or cfs
- cusec^{[citation needed]}
The flow or discharge of rivers, i.e., the volume of water passing a location per unit of time, is commonly expressed in units of cubic feet per second or cubic meters per second.
See also cubic metre per second
Cubic foot per minute
The IEEE symbol for the cubic foot per minute is ft^{3}/min.^{[4]} The following abbreviations are used:
- CFPM
- CFM
Cubic feet per minute is used to measure the amount of air that's being delivered and is a common metric used for carburetors, ^{[5]} pneumatic tools, and air compressor systems.^{[6]}
Standard cubic foot
A standard cubic foot (abbreviated scf) is a measure of quantity of gas, sometimes^{[clarification needed]} defined in terms of standard temperature and pressure as a cubic foot of volume at 60 degrees Fahrenheit (15.56 °C; 288.71 K) and 14.7 pounds per square inch (PSI) (1.01 bar; 101.35 kPa) of pressure.^{[citation needed]}
See Also: Standard cubic foot per minute
See also
- cubic inch
- cubic yard
- Board foot
- Conversion of units
- Cord
- Cube (arithmetic), cube root
- Orders of magnitude (volume) for a comparison with other volumes
- Square foot
- Therm, a unit of natural gas approximately equal to 100 cubic feet