# Garden Hose Flow Rate and Time

The amount of water flow from a garden hose and minutes to supply that amount of water are determined below, based on the hose size and its supply pressure.

## Garden Hose Flow Rate Calculator

Hose Size:
in
Hose Supply Pressure:
psi
Hose Length:
feet
Water Flow Rate:

## Water Flow Time Calculator

Volume:
Time:

### The Equations

These calculators use these formulas to determine the water flow rate and time to fill a container with a garden hose.

#### Water Flow Rate Where: = Water flow rate from the end of the hose (gpm) = An arbitrary number derived from the hose size and supply pressure See Table. = An arbitrary number to account for hose size See Table.

#### Water Flow Time Where: = Time it will take to fill the specified volume (min) = Volume needed (gal) = Flow rate from the garden hose (gpm)

To determine the value for , use this table.To determine the value for , use this table.

Length (ft)Value
254
502
751.5
1001
125.87
150.75
175.62
200.5
 Pressure (psi) Size (in) 40 45 50 60 1/2 6 6.5 7 7.5 5/8 11 12 12.5 14 3/4 18 19 20 22

Reference: Washington State University