Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Ducts - Cross-Sectional Area vs. Diameter

Circular ducts sross-sectional areas.

circular duct

Circular ventilation ducts and cross-sectional areas - Imperial Units

Ducts - Cross-Sectional Area vs. Diameter - Imperial Units
Duct Diameter Area
(in)(mm)(ft2)(m2)
8 203 0.3491 0.032
10 254 0.5454 0.051
12 305 0.7854 0.073
14 356 1.069 0.099
16 406 1.396 0.130
18 457 1.767 0.164
20 508 2.182 0.203
22 559 2.640 0.245
24 609 3.142 0.292
26 660 3.687 0.342
28 711 4.276 0.397
30 762 4.900 0.455
32 813 5.585 0.519
34 864 6.305 0.586
36 914 7.069 0.657

Circular ventilation ducts and cross-sectional areas - Metric Units

Ducts - Cross-Sectional Area vs. Diameter - SI Units
Duct DiameterArea
(mm)(m2)(mm2)(in2)
63 0.003 3019 4.7
80 0.005 4902 7.6
100 0.008 7698 11.9
125 0.012 12076 18.7
160 0.020 19856 30.8
200 0.031 31103 48.2
250 0.049 48695 75.5
315 0.077 77437 120
400 0.125 125036 194
500 0.196 195565 303
630 0.311 310736 482
800 0.501 501399 777
1000 0.784 783828 1215
1250 1.225 1225222 1899

Circular air ducts - cross sectional area

Download and print Circular Air Ducts Cross Sectional Area chart.

Related Topics

  • Ventilation Systems

    Design of systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2010). Ducts - Cross-Sectional Area vs. Diameter. [online] Available at: https://www.engineeringtoolbox.com/duct-diameter-area-square-feet-meters-convert-d_1680.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































4.19.9

.