Best Duct Calculator For Hvac Installations Apps

223+ iOS apps curated and reviewed

4.0 avg rating
12 free apps
Updated May 2026

Looking for free duct calculator for hvac installations apps? 12 of our 223+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Duct Calculator For Hvac Installations

More Duct Calculator For Hvac Installations apps to explore

4
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

Get advanced solutions for HVAC problems with an interactive app that guides technicians through repair steps. Simplify complex issues and enhance your repair processes.

🔧 Utilities
(185)
5
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
Size Simple HVAC Duct Runs
Free
💼 Business
(1)
6
Duct Calculator
Duct Calculator
Duct Calculator
by OMIKRON MAKINE MUHENDISLIGI IC VE DIS TICARET SANAYI LIMITED SIRKETI
Free

This mobile application allows users to easily calculate duct sizes and make necessary adjustments. Download it now to simplify your duct calculations and take control of your projects.

🔧 Utilities
(1)
7
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)
8
Greenheck Toolbox
Greenheck Toolbox
Greenheck Toolbox
by Greenheck
Free

This application offers two essential tools for HVAC professionals: a Fan Law Calculator to determine fan performance by modifying existing measurements, and a Ductulator to quickly size HVAC duct based on various inputs. By using these tools, users can easily calculate and determine essential parameters for their HVAC systems.

🔧 Utilities
(3)
9
Thermaflex Duct Calculator
Thermaflex Duct Calculator
Thermaflex Duct Calculator
by Gastite Products LLC
Free

This convenient application allows HVAC engineers to easily determine the smallest recommended duct size for their installation, based on specific volume and friction loss. Simply select the product, friction loss, and volume, and the app will calculate the velocity and display the appropriate duct size for your application.

🔧 Utilities
(1)
10
Ductulator - Duct Sizing
Ductulator - Duct Sizing
Ductulator - Duct Sizing
HVAC Duct Design Calculator
$3.99
📊 Productivity
(272)
11
Digiduct
Digiduct
Digiduct
Duct-Sizing App
Free

This HVAC duct-sizing app utilizes ASHRAE Fundamentals equations, offering accurate sizing for rectangular, round, and flat oval ducts with customizable dimensions and intelligent location parameters. Ensure precision in your HVAC designs by leveraging the unique features of this app.

🔧 Utilities
(10)
12
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)
13
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)
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
AI Ductulator
AI Ductulator
AI Ductulator
by pasquale dipaola
$3.99

This application is a duct sizing calculator that helps users determine the correct duct size for their needs. Try it out to accurately size your ducts and optimize your system.

🔧 Utilities
(9)
16
HVACR Check & Charge
HVACR Check & Charge
HVACR Check & Charge
PT Charts Superheat Subcooling
Free

HVACR Check is a powerful tool for HVAC technicians that streamlines equipment checklists, service reports, and maintenance workflows. Simplify your work processes and stay organized with this all-in-one solution.

🔍 Reference
(16K)
17
HVAC Duct Sizer
HVAC Duct Sizer
HVAC Duct Sizer
HVAC duct sizing and more...
$5.99

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.

🔧 Utilities
(8)
18
WinFab - Sheet Metal Ductulator
WinFab - Sheet Metal Ductulator
WinFab - Sheet Metal Ductulator
by pasquale dipaola
$3.99

This application is a duct sizing calculator designed to help users quickly and accurately determine the optimal size for sheet metal ducts. Try it out to streamline your duct sizing calculations and get precise results.

💼 Business
(6)
19
HVAC Duct Size Calculator
HVAC Duct Size Calculator
HVAC Duct Size Calculator
by Alan Cave
$0.99

This application helps HVAC design professionals determine optimal duct sizes with precision, offering a list of suitable even-sized ducts at various aspect ratios. It features an intuitive interface for easy adjustments and calculations, making it a valuable tool for streamlining duct sizing tasks.

🔧 Utilities
(1)
20
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.

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