Home > Construction > CFM Calculator Test Test Test Room ACH Duct Velocity Unit Convert Room Size & Air Changes per Hour Room Length ft m in Room Width ft m in Ceiling Height ft m in Air Changes / Hour Room Type (ACH Guide) Custom ACH Living Room / Bedroom — 6 ACH Kitchen — 8 ACH Bathroom — 10 ACH Office — 12 ACH Server Room — 15 ACH Clean Room — 20 ACH CFM from Duct Velocity × Area Duct Velocity ft/min m/s mph Duct Shape Round Rectangular Duct Diameter in ft cm mm Duct Width in ft cm Duct Height in ft cm Convert Airflow Units Value From Unit CFM (ft³/min) CFS (ft³/sec) m³/hr m³/min m³/sec L/min L/sec Calculate Clear CFM — In m³/hr — In L/min — In CFS — In m³/sec — Table of ContentsTestTestTestTestTestTestTestTestTest Test Test Test Test Test Test Test Test
