Duct Calculator Elite

Duct Calculator Elite™ is a professional-grade HVAC tool designed for iOS devices, enabling users to efficiently calculate duct sizes, airflow, pressure drops, and velocities. Tailored for HVAC engineers, contractors, and designers, this app offers precise calculations based on the 2009 ASHRAE Handbook—Fundamentals. Its intuitive interface allows for quick input without relying on cumbersome sliders, ensuring a seamless user experience. The app supports various units and materials, making it adaptable to diverse project requirements.

Launch the app and select your preferred units for airflow, velocity, pressure loss, and duct dimensions. Choose the desired calculation mode: "Duct Size by Airflow," "Duct Size by Dimension," or "Pressure Drop." Enter the known parameters (e.g., airflow, velocity, or duct dimensions) in the selected mode. The app will automatically compute the unknown variables and display the results. Review the calculated duct sizes, velocities, and pressure drops to ensure they meet your design specifications.