The best replacement for cfm is psi.

The best alternatives to cfm are rated as following:
★★★★★  psi
★★★★  scfm
★★★  static pressure
★★  btu
★★  horsepower
★★  cma
★★  fpm
★  cfa
★  acfm
★  iae
★  mph
★  lfm
★  rpm
★  duct size
★  scfm compressor
★  scfm definition
★  cmh
★  m3/h
  fmp
  lpm
  750 cfm
  scfm conversion
  cfm
  application.cfc
  m3 h
  air pressure
  650 cfm
  scfm air compressor
  m3\/h

Your alternative for cfm is not listed? Suggest!
Speaking about cfm, one probably shouldn't forget about duct size.

Other search terms related to cfm and their ratings are:
★★★★★ duct size
★★★ anemometer
★★★ static pressure
★★ range hood
You have in mind a companion for cfm and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of cfm in all years. Click on graph for more.
cfm
psi
scfm