Cubic foot
The cubic foot 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, a cubic foot of water weighs 62.36630 pounds (28.28888 kg).
Contents
Conversions[edit]
| 1 cubic foot | = 1728 cubic inches | |
| = 1⁄27 of a cubic yard | ||
| ≈ 0.037037037037037 cu yd | ||
| = 0.028316846592 cubic meters | ||
| = 28.316846592 liters | ||
| = 576⁄77 US fluid gallons | ||
| = 1728⁄231 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 US bushels | ||
| ≈ 0.1781076 oil barrel | ||
Symbols[edit]
There are no universally agreed abbreviations, but the following are used:
- cubic feet, cubic foot, cubic ft, cu ft, cuft, cu.ft, cb ft, cbft, cb.ft, cbf, cu feet, cu foot, ft3, feet3, foot3, feet/-3, foot/-3, ft/-3 ft
- CCF for 100 cubic feet (C denotes centum, hundred. Also HCF where H stands for hundred. Used in the billing of natural gas and water delivered to households.)
- MCF for 1000 cubic feet (M denotes mil, thousand)
- MMCF for 1000000 cubic feet (28000 m3)
- MMCFD for millions of cubic feet per day.[1]
- BCF for a billion cubic feet[2]
- TCF for a trillion cubic feet.[1][2]
- TMC for thousand million cubic feet (usually used for referring to storage capacity and actual storage volume of storage dams)
Cubic foot per second[edit]
There is no universally agreed symbol but the following are used.
- ft3/s
- cu ft/s
- cfs[citation needed]
- ft3/sec
- cusec[citation needed]
Cubic foot per minute[edit]
There is no universally agreed symbol but the following are used.
- ft3/min
- CFPM
- CFM
Standard cubic foot[edit]
A standard cubic foot (abbreviated scf) is a measure of quantity of gas, sometimes but not always[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[edit]
- 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
Notes[edit]
- ^ a b Used in the oil and gas industry.
- ^ a b The terms billion and trillion as used here refer to the short scale definitions, 109 and 1012 respectively.
