Cubic foot

The cubic foot (symbol ft 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 (0.3048 m) in length, or exactly 28.316846592 L (which differs by about 1% from ⁠1/35⁠ of a cubic metre, making that a suitable approximation in many cases). The IEEE symbol for the cubic foot is ft. 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, foot, ft, feet/-3, foot/-3, ft/-3. Larger multiples are in common usage in commerce and industry in the United States: The IEEE symbol for the cubic foot per second is ft/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 ft/s = 0.0283168 m/s = 28.3168 L/s = 1.699011 m/min = 1,699.011 L/min The IEEE symbol for the cubic foot per minute is ft/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 carburetors, pneumatic tools, and air-compressor systems. 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 °F (16 °C; 289 K) and 14.7 pounds per square inch (1.01 bar; 101 kPa) of pressure.