Best Hvac Duct Sizer Apps

222+ iOS apps curated and reviewed

4.5 avg rating
14 free apps
Updated May 2026

Finding the right hvac duct sizer app can be overwhelming with so many options. We've analyzed 222+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Hvac Duct Sizer

HVAC Duct Sizer#2

HVAC Duct Sizer by Carmel Software Corporation

HVAC duct sizing and more...
Strong Contender
🔧 Utilities
2.9(8 ratings)
$5.99In-App Purchases
HVAC Duct Sizer screenshot 1
HVAC Duct Sizer screenshot 2
HVAC Duct Sizer screenshot 3
HVAC Duct Sizer screenshot 4
HVAC Duct Sizer screenshot 5
HVAC Duct Sizer screenshot 6

This application helps HVAC professionals quickly and easily size ducts using the constant friction method, with features to analyze existing duct systems and generate reports. Download the app to perform duct sizing analysis, track equipment, and access a range of HVAC calculation tools.

More Hvac Duct Sizer apps to explore

4
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
Size Simple HVAC Duct Runs
Free
💼 Business
(1)
5
Ductulator - Duct Sizing
Ductulator - Duct Sizing
Ductulator - Duct Sizing
HVAC Duct Design Calculator
$3.99
📊 Productivity
(272)
6
Bluon HVAC
Bluon HVAC
Bluon HVAC
HVAC Tools
Free

Discover a powerful HVAC tool with access to a vast database of 500,000 HVAC models for manuals and part lists, troubleshooting support from MasterMechanic A.I., and live assistance from veteran technicians. Join the largest HVAC community to elevate your industry knowledge and skills today.

🔧 Utilities
(4.4K)
7
CE HVAC Pro+
CE HVAC Pro+
CE HVAC Pro+
HVAC Tools
Free

An HVAC tool application offering HVAC technicians easy access to warranty entitlement, inventory, order status, manuals, and tech specs for various models. It aims to support technicians with quality products, expert technical assistance, and business growth, positioning itself as a leading HVAC supplier. Experience real-time product availability and streamline your HVAC tasks with this free app.

📊 Productivity
(1.5K)
8
SkillCat: EPA 608, HVAC & more
SkillCat: EPA 608, HVAC & more
SkillCat: EPA 608, HVAC & more
Accredited Online Trade School
Free

SkillCat is a HVAC training app that offers interactive courses, simulations, and quizzes to help users learn and master HVAC concepts. Gain expertise in heating, ventilation, and air conditioning through engaging lessons and hands-on practice. Start your HVAC learning journey today!

📚 Education
(7.2K)
9
Duct Calculator Elite
Duct Calculator Elite
Duct Calculator Elite
Ducting Size Calculator
$6.99

This ducting size calculator simplifies the job of duct sizing for HVAC professionals, allowing users to calculate duct size, velocity, pressure drop, and flow rate for ductwork with precision and ease. Download the app to streamline your duct sizing calculations and take advantage of customizable preference settings and accurate solver equations.

🔧 Utilities
(220)
10
HVAC School
HVAC School
HVAC School
By Techs For Techs
Free
📚 Education
(81)
11
Gemaire HVAC Pro+
Gemaire HVAC Pro+
Gemaire HVAC Pro+
HVAC Tools
Free

Access a wide range of HVAC tools and product information on-the-go with Gemaire's mobile app. Simplify your HVAC tasks and save time with this handy tool, whether you're on-site, on the road, or relaxing at home. Ideal for HVAC professionals looking to streamline their workflow.

📊 Productivity
(798)
12
HVAC Toolkit Lite
HVAC Toolkit Lite
HVAC Toolkit Lite
Useful tool for HVAC engineers
Free
📊 Productivity
(1)
13
ASHRAE HVAC Duct Sizer
ASHRAE HVAC Duct Sizer
ASHRAE HVAC Duct Sizer
HVAC Duct Sizing and more....
$5.99

This application allows users to quickly size HVAC duct runs using the constant friction method, with features to analyze existing duct systems and display a range of duct sizes. It offers various input modes, unit conversions, and the ability to email results for further analysis on a desktop computer.

💼 Business
(0)
14
Duct Calculator
Duct Calculator
Duct Calculator
Ductulator & Duct Sizer
$19.99

This application allows HVAC engineers, designers, and contractors to quickly and accurately size new ducts or calculate the performance of existing ducts on their mobile devices. It enables users to perform calculations for round and rectangular ductwork, with features such as live updates, direct entry of numbers, and unit conversions, making it ideal for designing air handling systems.

🔧 Utilities
(179)
15
DuctCalc.Ca
DuctCalc.Ca
DuctCalc.Ca
Ductulator Duct Calculator
Free

This duct calculator app allows users to size ducts using the Equal Friction Method and Velocity Method, calculating dimensions and air velocity for round and rectangular ducts, with the option to subscribe for full airflow functionality. By subscribing, users can access the full range of airflow calculations and use the app offline, making it a convenient tool for duct sizing and engineering applications.

🔧 Utilities
(20)
16
Baker HVAC Pro+
Baker HVAC Pro+
Baker HVAC Pro+
HVAC Tools
Free
📊 Productivity
(570)
17
Ruud
Ruud
Ruud
Connect . Install . Service
Free

A powerful and intuitive app designed for contractors in the HVAC industry. With Bluetooth capability, it simplifies system installation, monitoring, troubleshooting, and service. Access installation instructions, parts lists, manuals, and warranty information easily, along with features to locate retailers, distributors, and research rebate and financing options.

🔧 Utilities
(942)
18
Homans HVAC Pro+
Homans HVAC Pro+
Homans HVAC Pro+
HVAC Tools
Free

This mobile app provides HVAC professionals with on-the-go access to product information, tools, and resources to streamline their work, including order tracking, duct calculation, and product availability. By downloading the app, professionals can save time, increase efficiency, and stay connected with their supplier for expert technical support and exclusive offers.

📊 Productivity
(63)
19
Heating & Cooling HVAC Pro+
Heating & Cooling HVAC Pro+
Heating & Cooling HVAC Pro+
HVAC Tools
Free

This mobile app is an HVAC "Easy Button" that provides access to product information, useful tools, and expert technical support, making it easier for professionals to work efficiently. With the app, users can view product information, search for equipment, verify warranty registrations, access technical support, and utilize various calculators and tools to streamline their work.

📊 Productivity
(42)
20
HVAC Toolkit
HVAC Toolkit
HVAC Toolkit
HVAC calcs for all your needs
$23.99

This comprehensive toolkit is essential for anyone in the HVAC industry, offering a collection of 11 modules for calculations and analysis, including equipment tracking, PT charts, refrigerant charge, duct sizing, and more. Download the toolkit to access a wide range of features and calculations in one convenient app, and take advantage of a cost-effective solution that would otherwise cost significantly more.

📊 Productivity
(2)

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