Duct Sizer

Duct Sizer

Energy4You·FREE
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Screenshots

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Description

The Duct Sizer is a productivity app developed by Nopparat Katkhaw. The app is a simplest and quickest ductulator.
Perform quick calculation and accurate results.
Use the finger slide for quick calculations.
Shows equivalent round and rectangular duct sizes.
Compatible with IP, SI and JP units.
We would very much like your feedback! Pleas contacts Facebook page: https://www.facebook.com/UP.Energy4You

Notice for Users Experiencing Issues Accessing the Paid App

We apologize for the inconvenience caused to users who purchased the paid app and are unable to access it. We have found a solution by providing keys for those affected. Please contact us via email to request a key. The required information for reference:
-Use the receipt from your purchase of our app. **The receipt will be in your email from when you made the purchase.
-Send your request to nopparat_ka@hotmail.com

Developer

Energy4You

Developer ID: Energy4You

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Recent Reviews

Ivs2000

v1

Incorrectly calculates the sizes of square air ducts. not recommended

Developer Response

Thank you very much. Keep using our app :)

3 May 2025

30 Apr 2026

Andrew Bellefeuille

v1

duct sizing is correct but airflow and fri tion calculations are off by hundreds. refer to smacnas calculator. not that.hard guys. fix it

11 Feb 2026

fair golfer

v1

Simple to use, I checked it against a reliable paper version and they were both the same. 👍👍

3 Sept 2025

Kim Hanson

v0.2

terrible app. nothing like depicted in the ad for it. can't adjust between duct materials. it doesn't even tell you what kind of duct material it's basing things on. completely useless.

Developer Response

I regret that you did not like the app, but thanks for the feedback. If you look below the unit selection button, a material surface roughness value is displayed. In the ductwork, it is known that this roughness corresponds to multiple material types and is applicable to galvanized sheet metal ducts.

4 Jun 2025

29 May 2025

Glenn G

v0.2

very inaccurate, do not use unless you want a screwed up job. BEWARE.

Developer Response

If you have previously used the cardboard duct calculator from Carrier, Trane, or York, you can rely on the accuracy of this application, as it is developed based on those established duct calculators.

3 May 2025

17 Apr 2025

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