Air Flow Conversion Calculator

Enter value, select unit and click on calculate. Result will be displayed.

Enter Your Values:

Air Flow:
H: W:
R:

Result:

ft/min (LFM)
m/s
miles/hr (MPH)
ft3/min (CFM)
m3/hr
L/s

Air Flow Conversion Calculator Air velocity (distance moved per unit of time) is usually expressed in linear feet per minute (LFM). Multiply that by the air velocity through the cross-sectional area of the duct, and you can determine the amount of air flowing through each unit of time in the duct. Volume flow is usually measured in cubic feet per minute (CFM). The air velocity concept can be used in air conditioning, heating, ventilation, etc.
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