duckTED

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Content rating
Everyone
100+
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Content rating
Everyone
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About this app

Sizing ducts for HVAC systems?

duckTED is here to help!

Inspired by my original PC-based software from the early 2000's, duckTED has now been completely recreated for Android, to continue Ted's legacy - enabling fast and repeatable duct sizing calculations & supporting you in your engineering design. Better still, Ted can now join you on site (he needed to get out more anyway)!

Built for both metric and imperial calculations.

No disrespect intended towards any well loved Ductulator out there, but this was built to be quicker and easier to use. Yes, really.

A Getting Started guide is included under FAQ in the app menu.

+ there's a short tutorial on YouTube here: https://www.youtube.com/watch?v=ScgDhHk5DYw
Updated on
Feb 16, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted

What’s new

Minor update to remain available on the Play Store.
No changes to calculations.
Content rating
Everyone
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App support

About the developer
Brett Robbie Fairweather
duckted@itsengineered.com.au
Australia