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Air Duct Cross-Section Converter
Compare rectangular and round duct cross sections with measured dimensions.
Enter your values
Your inputs are processed locally. Review the method and limitations before relying on the estimate.
Your result
How does Air Duct Cross-Section Converter work?
Compare rectangular and round duct cross sections with measured dimensions.
Worked example
With the suggested numbers, calculate the displayed quantities and replace them with your measured assumptions.
Frequently asked questions
Are values current market or legal rates?
No. All prices, rates and conditions are entered by you.
Is this a certified engineering or legal conclusion?
No. It is a transparent planning model; confirm high-consequence decisions independently.