Air Demand Calculator

Enter the air tools used in your workshop to work out the free air delivery a compressor needs to supply them all; everything is calculated in your browser and nothing is sent anywhere.

Air tools

Consumption should be the tool maker's own figure, at the maker's stated pressure, from the tool's manual.

Usage factor is how much of a working hour the tool is actually drawing air, as a percentage.

Air tool list with consumption, pressure, quantity and usage factor
Tool description	Consumption (L/min)	Pressure (bar)	Quantity	Usage factor (%)	Remove

System settings

Working pressure (bar)

Allowance for leaks and future growth (%)

Published sizing guides add between 20% and 25%; set your own.

Air Demand Calculator

Result

Illustration from two published listings