Cubic foot

The cubic foot (symbol ft3 or cu ft) is an imperial and US customary (non-metric) unit of volume, used in the United States and the United Kingdom. It is defined as the volume of a cube with sides of one foot () in length. Its volume is (about of a cubic metre).
At , a cubic foot of water weighs .
Symbols and abbreviations.
The IEEE symbol for the cubic foot is ft3. The following abbreviations are used: cubicfeet, cubicfoot, cubicft, cufeet, cufoot, cuft, cu.ft, cuft, cbft, cb.ft, cbft, cbf, feet, foot, ft, feet/-3, foot/-3, ft/-3.
Larger multiples are in common usage in commerce and industry in the USA:
Cubic foot per second and related flow rates.
The IEEE symbol for the cubic foot per second is ft3/s. The following other abbreviations are also sometimes used:
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 metres per second.
Cusec is a unit of flow rate, used mostly in the United States in the context of water flow, particularly of rivers and canals.
Conversions: 1 ft3s−1 = 0.028316847 m3⋅s−1 = 28.316847 L⋅s−1 = 1.699 m3⋅min−1 = 1699 L⋅min−1
Cubic foot per minute.
The IEEE symbol for the cubic foot per minute is ft3/min. The following abbreviations are used:
Cubic feet per minute is used to measure the amount of air that is being delivered, and is a common metric used for carburettors, pneumatic tools, and air-compressor systems.
Standard cubic foot.
A standard cubic foot (abbreviated scf) is a measure of quantity of gas, sometimes defined in terms of standard temperature and pressure as a cubic foot of volume at 60 degrees Fahrenheit () and 14.7 pounds per square inch (PSI) () of pressure.