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Duct 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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For optimal ventilation system design and effective HVAC planning, it is essential to accurately determine the surface area of all ducts and fittings. This online Duct Area Calculator computes the surface area of various duct shapes-whether round or rectangular-as well as fittings including elbows, tees, and end caps. Such calculations are critical both during the design phase and when procuring materials for the installation of the ventilation system.

Calculator functionality:

  • Calculation of duct and fitting surface area based on geometric parameters (diameter, length, width, and height of components).
  • 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 quantity in units or linear meters.
  • Incorporation of the cost for each element to calculate the overall cost of the ventilation system.

Calculation process:

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

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

Additional features:

  • Edit the cost of elements directly in the specification.
  • Remove items from the specification as needed.

This Duct Area Calculator is a valuable tool for both designers and engineers, ensuring precise computation of duct and fitting surface areas for efficient ventilation system planning.

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