Cfm Bathroom Fan Calculator

Press calculate minimum suggested bath fan cfm.

Cfm bathroom fan calculator. Cfm cubic feet per minute general term used to specify the amount of air that the bathroom fan is able to move within one minute of its operation. When installing a vent fan make sure there s at least a 1 2 gap under the bathroom door. That s why we developed this handy bathroom vent fan cfm calculator. Simply enter the dimensions of your bathroom in the calculator below to determine the minimum size vent fan you need for the bathroom in your home.

They re most commonly found in bathrooms and rid them of moist air produced by your bath shower or sink. This fan calculator is typically used to calculate the cfm or cubic feet per minute of air exchange that may be desired in a building. An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 7 5 minutes. The bath fan calculator is standard guide to help you find the minimum fan rating for your specific bathroom.

First you have to measure your bathroom dimensions to calculate room volume length x width x height of the room feet. Determine the required cfm for your bathroom fan. To arrive at your required cfm simply divide your bathroom s volume by 7 5. Cfm calculator bathroom exhaust fans don t require nearly as many cfm as a kitchen range hood but their importance should not be underestimated.

Use our handy online calculator to see what size vent fan you need for your home.