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Duct Calculator
Quickly perform ductwork calculations with our free online tool, ideal for HVAC professionals, engineers, and students designing or maintaining ventilation systems.
Check It Yourself
About This Tool
Our Duct Calculator is an essential online tool for HVAC professionals, engineers, and students involved in ventilation system design and maintenance. It facilitates quick, precise calculations of duct dimensions, airflow, pressure drops, and insulation needs based on user input.
Simply enter your parameters like airflow rate, duct shape, and velocity to get immediate, accurate results. The tool supports both rectangular and circular ducts, offering detailed recommendations for optimal sizing and performance. Its user-friendly interface and high-precision calculations help improve system efficiency, reduce energy consumption, and ensure compliance with standards.
Whether you’re designing new ductwork or inspecting existing installations, this calculator provides critical insights to optimize airflow and minimize pressure losses. It is valuable for HVAC engineers, facility managers, contractors, and students looking for reliable, instant ductwork analysis. The tool’s advanced features include export options and calculation history, supporting professional workflows in various regions and standards.
How to Use
1. Enter your desired airflow rate in CFM or m³/h.
2. Select the duct shape (rectangular or circular).
3. Input the duct dimensions (width/height or diameter).
4. Adjust other optional parameters like duct length or roughness if needed.
5. Click 'Calculate' to view results including dimensions, airflow, and pressure drop.
FAQs/Additional Resources
Find Quick Answers
How accurate are the duct calculations?
Can I use this tool for different duct shapes?
Is the tool suitable for large commercial duct systems?
Does the tool support different units?
Can I save or export my calculations?
User Reviews
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John Doe
CEO of Company
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John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
John Doe
CEO of Company
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
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