# Cubic foot

(Redirected from Cubic feet per second)

The cubic foot (symbol ft3)[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 ​135 of a cubic meter.

At 60 °F (16 °C), a cubic foot of water weighs 62.36630 pounds (28.28888 kg).

## 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 ft3.[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, feet3, foot3, ft3, 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 ft3. Latin centum meaning a hundred. Used in the billing of natural gas and water delivered to households.
MCF
Mille cubic feet; i.e., 1000 ft3. Latin mille meaning a thousand.
MMCF
Mille mille cubic feet; i.e., 1000000 ft3.
MMCFD
MMCF per day; i.e., 1000000 ft3/day. Used in the oil and gas industry.
BCF
TMC
Billion, or thousand million cubic feet; i.e., 1000000000 ft3. TMC is usually used for referring to storage capacity and actual storage volume of storage dams.
TCF
Trillion cubic feet; i.e, 1000000000000 ft3. Used in the oil and gas industry.

## Cubic foot per second

The IEEE symbol for the cubic foot per second is ft3/s.[3] The following abbreviations are used:

## Cubic foot per minute

The IEEE symbol for the cubic foot per minute is ft3/min.[4] The following abbreviations are used:

• CFPM
• CFM

## Standard cubic foot

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]