Skip to content

Rectangular Duct Equivalent Calculator

Huebscher round equivalent for rectangular duct.

Inputs

Inputs and assumptions

Rectangular duct width.

Rectangular duct height.

Result

Equivalent round diameter (in)
—

What to check

  • Duct width and height

Related calculators

Screening estimate only. Verify nameplate ratings, measurements, and installer quotes before making a decision.

Saved calculations

Keep the assumptions with the result.

Save this calculation to return to the inputs, result, and report anytime.

Sign in or create an account to save this calculation.