ASHRAE HVAC Duct Sizer Downloads & RevenueASHRAE HVAC Duct Sizer · App Store
ASHRAE HVAC Duct Sizer is #82 in Business Paid in India and charting in 6 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
24 Sep 2026ASHRAE HVAC Duct Sizer update history & changes
Last change · 9 events since 14 Sep 2017Full timeline ↓Full timeline · 8 events in the last 12 months
- 📈ASHRAE HVAC Duct Sizer entered the top 100Top Paid · Business · CA
- 📈ASHRAE HVAC Duct Sizer entered the top 10Top Paid · Business · SA
- 📈ASHRAE HVAC Duct Sizer new best rank in the overall chart: #134Top Paid · All Apps · SA
- 📈ASHRAE HVAC Duct Sizer entered the top 10Top Paid · Business · IT
- 📈ASHRAE HVAC Duct Sizer charting in a new countryItaly
- 📈ASHRAE HVAC Duct Sizer charting in a new country in 2 chartsCanada · Indonesia
- 🆕ASHRAE HVAC Duct Sizer first spotted by AppInsider#82 in Top Paid · Business · India
- 🆕ASHRAE HVAC Duct Sizer released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Business PaidASHRAE HVAC Duct Sizer at a glance
AI summary written from our chart and store data, 2026-10-14. It can be wrong: check the numbers above.
A specialized utility for HVAC engineers and technicians to calculate duct dimensions using the constant friction method, serving as a digital alternative to traditional tools like the Trane Ductulator. The app holds a strong position in the Saudi Arabian paid business market at #2, while maintaining moderate visibility in the UAE (#54) and India (#87), indicating regional demand concentration.
Similar apps: Trane Ductulator, HVAC Load Calculator, Duct Sizer Pro
ASHRAE HVAC Duct Sizer on the App Store
App details
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| India | BusinessPaid | #82 |
 Canada | BusinessPaid | #120 |
 United Arab Emirates | BusinessPaid | #52 |
 Saudi Arabia | BusinessPaid | #79 |
 Brazil | BusinessPaid | #170 |
 Indonesia | BusinessPaid | #126 |
Apps near ASHRAE HVAC Duct Sizer on the chart
Business Paid, around #82.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about ASHRAE HVAC Duct Sizer
From recent reviews.
About ASHRAE HVAC Duct Sizer
In the "Size by Airflow" mode, you can specify the total airflow in CFM (or L/s), the aspect ratio and one of either the velocity of air or the friction loss per 100 feet (30 meters). The results include both the exact and rounded height and width (or diameter) dimensions and the calculated velocity and friction loss.
In the "Size by Dimensions" mode, you can analyze an existing duct system. There are options to input the existing duct dimensions and one of either the airflow or velocity values to derive the calculated duct friction loss.
In the "Range of Duct Sizes" mode, you can specify minimum and maximum friction loss and airflow values to display a range of duct sizes that fall in between the friction loss bounds.
You can specify additional parameters such as the duct shape (rectangular, round, or oval), the air temperature and the air pressure. You can also choose to display values in either English (IP) or Metric (SI) units.
This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results.
This app now works on your iPhone and iPad and adjusts its screen size accordingly.
Finally, you can email all of the inputs and results from all 3 input modes to perform further analysis using your desktop computer. The email includes HTML text and a .CSV attachment that can be imported into any popular spreadsheet.
The ASHRAE HVAC Duct Sizer application was designed by Carmel Software Corporation for ASHRAE.
