Cubic feet per second

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A cubic foot per second (also cfs, cusec and ft³/s) is an Imperial unit / U.S. customary unit of flow rate equal to a cube with sides each 12 inches (1 foot or 472.44 centimetres) in length exchanged or moving each second. It is not an SI or metric unit. Current official usage is largely confined to the United States and Canada, but like many imperial units which have officially been "abolished" in the United Kingdom, it remains familiar in that country, with extensive unofficial usage. It is popularly used for water flow, especially in rivers and streams, and for HVAC measurements of air flow.

Contents 1 Symbols 2 Conversions 3 See also 4 External links

[edit] Symbols

There is no universally agreed symbol but the following are used:

• cfs
• ft^3/sec
• ft³/sec
• cusec

[edit] Conversions

1 cubic foot per second is the same as:

• 1,728 cubic inches per second
• 7.48051945 gallons per second
• 28.3293425 litres per second
• 0.0283293425 cubic metres per second
• 31,536,000 cubic feet per year
• 0.000214242111 cubic miles per year
• 723.966942 acre feet per year

[edit] See also

• 1 E-1 m³ for a comparison with other volumes
• Cubic mile
• Orders of magnitude (volume)
• Conversion of units

[edit] External links

• Conversion of volumetric flow rate units