HVAC Duct Friction Loss Calculator
This HVAC duct friction loss calculator helps engineers estimate pressure loss in air ducts based on airflow, duct diameter, and duct length. It is commonly used in HVAC duct design and static pressure calculations.
Enter Duct Design Data
Calculation Result
Enter values and click calculate.
How This Calculator Works
The calculator estimates duct friction loss using standard HVAC empirical formulas. Results are expressed in inches of water gauge (in.wg) for total duct length.
Where This Is Used
- HVAC duct sizing
- Static pressure calculation
- Fan selection
- Energy-efficient HVAC design
Related HVAC Calculators
Note: This calculator is for preliminary HVAC design assistance only.
