CFM Calculator
Room length
ft
m
Room width
ft
m
Ceiling height
ft
inch
m
What the room is
Living room or bedroom — 4 changes/hour
Kitchen — 8 changes/hour
Bathroom — 8 changes/hour
Garage or workshop — 6 changes/hour
Smoking or fumes — 12 changes/hour
Airflow needed
102 CFM
Show the work
CFM Calculator
by Rule Calculator