Home > Working With Compressed Air > Conversion of scfm to acfm

Conversion of scfm to acfm

Formula

Where:
Ps = Standard pressure, psia (CAGI & ISO use 14.5 psia)
Pa = Atmospheric pressure, psia
ppm = Partial pressure of moisture at atmospheric temperature
RH = Relative humidity
Ta = Atmospheric Temperature, °F
Ts = Standard Temperature, °F (CAGI and ISO use 68 °F)
(CAGI and ISO standard is at zero RH)