RightSizeTools Practical sizing calculators
Workshop & Tools

Dust Collector CFM Calculator

Select the woodworking machines you want to support. Usually you size for the largest machine used at one time, plus duct losses.

Unit system Switch between U.S. customary and metric units. Your choice is remembered on other calculators.

Woodworking machines

Select the machine or machines you may run at the same time.

System margin

Long ducts, small hoses, and elbows reduce airflow. Add margin for real-world losses.

CFM
Advanced settings
%

Buying and sizing notes

Related calculators

Helpful tools for nearby decisions.

Workshop & Tools

Air Compressor CFM

Estimate air compressor CFM needed for common air tools.

Open calculator →