Construction calculators » Duct area calculator

Duct and fitting area calculator

round duct rectangular duct round elbow rectangular elbow round transition round-to-rectangular transition rectangular-to-rectangular transition round-round tee round-to-rectangular tee rectangular-to-rectangular tee rectangular-to-round tee round cap rectangular cap round insertion rectangular insertion

Round duct
Diameter D mm
Length L mm
Price per 1 linear meter ¤
round duct
Rectangular duct
Height h mm
Width b mm
Length L mm
Price per 1 linear meter ¤
rectangular duct
Round elbow
Diameter D mm
Radius R mm
Angle:
Length x1 mm
Length x2 mm
Quantity pcs
Price per unit ¤
90-degree elbow 90-degree elbow 90-degree elbow 90-degree elbow 90-degree elbow
Rectangular elbow
Height h mm
Width b mm
Radius R mm
Angle:
Length x1 mm
Length x2 mm
Quantity pcs
Price per unit ¤
rectangular elbow
Round-to-round transition
Diameter D1 mm
Diameter D2 mm
Length L mm
Length x1 mm
Length x2 mm
Quantity pcs
Price per unit ¤
round-to-round transition
Round-to-rectangular transition
Diameter D mm
Height h mm
Width b mm
Length L mm
Length x1 mm
Length x2 mm
Quantity pcs
Price per unit ¤
round-to-rectangular transition
Rectangular-to-rectangular transition
Height h1 mm
Width b1 mm
Height h2 mm
Width b2 mm
Length L mm
Length x1 mm
Length x2 mm
Quantity pcs
Price per unit ¤
rectangular-to-rectangular transition
Round-round tee
Diameter D1 mm
Diameter D2 mm
Length L mm
Length x1 mm
Quantity pcs
Price per unit ¤
round-round tee
Round-to-rectangular tee
Diameter D mm
Height h mm
Width b mm
Length L mm
Length x1 mm
Quantity pcs
Price per unit ¤
round-to-rectangular tee
Rectangular-to-rectangular tee
Height h1 mm
Width b1 mm
Height h2 mm
Width b2 mm
Length L mm
Length x1 mm
Quantity pcs
Price per unit ¤
rectangular-to-rectangular tee
Rectangular-to-round tee
Height h mm
Width b mm
Diameter D mm
Length L mm
Length x1 mm
Quantity pcs
Price per unit ¤
rectangular-to-round tee
Round cap
Diameter D mm
Length x mm
Quantity pcs
Price per unit ¤
round cap
Rectangular cap
Height h mm
Width b mm
Length x mm
Quantity pcs
Price per unit ¤
rectangular cap
Round insertion
Diameter D mm
Diameter D1 mm
Length x mm
Quantity pcs
Price per unit ¤
round insertion
Rectangular insertion
Height h mm
Width b mm
Height h1 mm
Width b1 mm
Length x mm
Quantity pcs
Price per unit ¤
rectangular insertion
№ Name Area per 1 linear meter or unit, m2 Price per 1 linear meter or unit, ¤ Quantity, linear meters or units Total area, m2 Price, ¤
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TOTAL


For proper ventilation system design, it is essential to accurately calculate the surface area of all duct elements. This online calculator allows you to calculate the surface area of various types of ducts, including round and rectangular ducts, as well as fittings such as elbows, tees, and end caps. Such calculations may be required both during the design phase and when purchasing materials for the installation of the ventilation system.

Calculator functionality:

  • Calculation of duct surface area based on geometric parameters (diameter, length, width, and height of elements).
  • Ability to choose from 15 types of elements: round and rectangular ducts, elbows at different angles, transitions, tees, end caps, take-offs, and other fittings.
  • Determination of the surface area for one or all selected elements, with the option to account for the quantity in units or linear meters.
  • Adding the cost of each element to calculate the total cost of the ventilation system.

Calculation process:

  1. Select the type of duct element you want to calculate.
  2. Enter the dimensions of the element according to the provided diagrams (for round and rectangular elements).
  3. Specify the quantity of elements in units or linear meters.
  4. If necessary, enter the cost per unit or linear meter.
  5. Click the "Calculate" button to get the final result.

The calculation results include the surface area of one element, the total surface area of all elements, and their cost. You can also add this data to the specification for further use in the project by clicking the "Add to Specification" button.

Additional features:

  • Editing the cost of elements directly in the specification.
  • Removing items from the specification as needed.
  • For calculating air velocity in the ventilation system, you can use the air velocity calculator.
  • For aerodynamic calculations of the ventilation system, there is another calculator.

This calculator will be a useful tool for both designers and engineers when calculating the surface area of ducts and fittings in a ventilation system. Share this calculator with your colleagues if you find it helpful.

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