RESOURCES

Duct Calculator

Name: RESSCO Metals, Inc.
Address: 1254 N Knollwood Cir, Anaheim, CA, 92801, US
Telephone: +15626337047

Convert between rectangular and round duct sizes using ASHRAE equivalent diameter formulas.

Find the round equivalent of a rectangular duct.

HEIGHT (in)

WIDTH (in)

ROUND EQUIVALENT

Find rectangular dimensions from a round duct.

DIAMETER (in)

ASPECT RATIO

WIDTH (a)

HEIGHT (b)

Build as if your name will be on it forever.
Work as if today is the only chance you'll get.

— Edwin Tobar, Founder & President · RESSCO Metals