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Straight Duct Calculator

Width
Height
Length
Result

Definition :

  • Straight duct is the most common type of duct used in HVAC systems.
  • It has a constant cross-sectional area along its length.
  • The pressure loss occurs mainly due to friction.
  • Ducts deliver supply, return, and exhaust air.

Uses :

  • Used to distribute air throughout buildings.
  • Common in residential and commercial HVAC systems.
  • Provides efficient airflow with minimal loss.

Formula :

  • Result = 2 × (Width + Height) × Length

How to Calculate ?

  • Enter the width of the duct.
  • Enter the height of the duct.
  • Enter the length of the duct.
  • Click “Calculate” to get the result.
  • Click “Reset” to clear all values.

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