|
U.S. Gallons per minute (gpm)
|
x .1337
|
= Cubic feet per minute
|
|
Cubic feet per minute
|
x 7.48
|
= U.S. gallons per minute
|
|
Cubic feet per second
|
x 448.8
|
= U.S. gallons per minute
|
|
U.S. gallons per minute
|
x 0.00223
|
= Cubic feet per second
|
|
Acre inches per hour
|
x 453
|
= U.S. gallons per minute
|
|
British Imperial gallons
|
x 1.201
|
= U.S. gallons
|
|
U.S. gallons
|
x 0.833
|
= British Imperial gallons
|
|
Acre feet
|
x 325,850
|
= U.S. gallons
|
|
Acre inches
|
x 27154
|
= U.S. gallons
|
|
GPM
|
x 226.8
|
= liters per hour
|
|
cubic feet per minute
|
x 1699
|
= liters per hour
|
|
acre inches per hour
|
x 1712.3
|
= liters per minute
|
|
acre feet
|
x 1231.7
|
= cubic meters
|
|
acre inch
|
x 102.64
|
= cubic meters
|
|
velocity (feet/second)
|
x 0.3047
|
= velocity (meters/second)
|
|
velocity (meters/second)
|
x 3.281
|
= velocity (feet/second)
|
Velocity in feet per second = (0.408 x GPM) / Inside diameter of pipe in inches, squared
Q=AV (quantity = area x velocity) ("the basic equation of water flow")
(example: quantity in cubic feet per second = square feet of area x feet per second velocity)
One inch of water depth = 0.62 gallons per square foot of area
|