CFM to CMH Converter, you need to use the conversion factor between these two units of volumetric flow rate: 1 CFM = 1.6990108 CMH Conversion Formula To convert a flow rate value from CFM to CMH, use the following formula: CMH=CFM×1.6990108CMH=CFM×1.6990108 Example Conversion Let’s say you want to convert 100 ...