ClueLuma

Flow rate converter

Convert volume flow between US gpm, cfm, L/s, L/min, m³/h, m³/s, ft³/s and million gallons per day, for water and air systems.

Volume flow

500gpm US gallons per minute
66.8403cfm cubic feet per minute
31.5451L/s liters per second
1,892.71L/min liters per minute
113.562m³/h cubic meters per hour
0.0315451m³/s cubic meters per second
1.114ft³/s cubic feet per second
0.72MGD million US gallons per day

Formula

1 gpm=0.0631 L/s=0.2271 m3/h1\ \mathrm{gpm} = 0.0631\ \mathrm{L/s} = 0.2271\ \mathrm{m^3/h} 1 cfm=0.4719 L/s=1.699 m3/h1\ \mathrm{cfm} = 0.4719\ \mathrm{L/s} = 1.699\ \mathrm{m^3/h}

Common values

gpm here is the US gallon (3.785 L) per minute. In IP units, water flow and temperature difference give heat with q = 500 × gpm × ΔT (Btu/h), and air flow gives sensible heat with q = 1.08 × cfm × ΔT.

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Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.