Best Ductalator Apps

61+ iOS apps curated and reviewed

4.1 avg rating
14 free apps
Updated May 2026

Finding the right ductalator apps can be overwhelming with so many options. We've analyzed 61+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Ductalator Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1DuctalatorDuctalatorFreeNoYesMay 2026
2Ductulator - Duct SizingDuctulator - Duct Sizing$3.994.7★ (272)NoNoJul 2026
3SMACNA Duct-U-LatorSMACNA Duct-U-LatorFree5.0★ (1)NoNoMay 2026
4WinFab - Sheet Metal DuctulatorWinFab - Sheet Metal Ductulator$3.994.8★ (6)NoNoJul 2026
5AI DuctulatorAI Ductulator$3.993.9★ (9)NoNoJul 2026
6DigiductDigiductFree4.6★ (11)YesNoJul 2026
7DuctCalc.CaDuctCalc.CaFree1.9★ (20)NoYesMay 2026
8Quietflex DuctulatorQuietflex DuctulatorFree5.0★ (1)NoNoMay 2026

Top Picks for Ductalator

Ductulator - Duct Sizing#2

Ductulator - Duct Sizing by Wassim Murr

HVAC Duct Design Calculator
Strong Contender
📊 Productivity
4.7(272 ratings)
$3.99
#91in Productivity
Ductulator - Duct Sizing screenshot 1
Ductulator - Duct Sizing screenshot 2
Ductulator - Duct Sizing screenshot 3
Ductulator - Duct Sizing screenshot 4
Ductulator - Duct Sizing screenshot 5
Ductulator - Duct Sizing screenshot 6

Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.

More Ductalator apps to explore

4
WinFab - Sheet Metal Ductulator
WinFab - Sheet Metal Ductulator
WinFab - Sheet Metal Ductulator
by pasquale dipaola
$3.99

This app calculates the correct dimensions for sheet metal ductwork. It simplifies the process of determining airflow and pressure drop for HVAC systems. Essential for professionals in the sheet metal and HVAC industries.

Duct sizing calculationAirflow determinationPressure drop calculation
💼 Business
(6)
paid
5
AI Ductulator
AI Ductulator
AI Ductulator
by pasquale dipaola
$3.99

This application serves as a duct sizing calculator for HVAC professionals and enthusiasts. It provides quick and accurate calculations for duct dimensions based on various parameters.

Duct sizing calculationsHVAC parameter inputAccurate dimension results
🔧 Utilities
(9)
paid
6
Digiduct
Digiduct
Digiduct
Duct-Sizing App
Free

This HVAC tool assists professionals with duct sizing calculations based on ASHRAE standards. It supports multiple duct shapes and offers intelligent features to ensure accurate and reliable designs for real-world scenarios.

Duct sizing for rectangular, round, and flat oval ductsCustomizable dimensions with locked valuesDuct location intelligence for context-aware sizing
🔧 Utilities
(11)
ad-supported
7
DuctCalc.Ca
DuctCalc.Ca
DuctCalc.Ca
Ductulator Duct Calculator
Free

This utility app calculates duct dimensions and air velocity using two methods: Equal Friction and Velocity. It supports both round and rectangular ducts, offering precise calculations for HVAC professionals. Offline functionality is available with a subscription.

Duct sizing calculatorEqual Friction MethodVelocity Method
🔧 Utilities
(20)
free with in-app purchases
8
Quietflex Ductulator
Quietflex Ductulator
Quietflex Ductulator
by Goodman Manufacturing L.P.
Free

This utility app helps HVAC professionals and enthusiasts quickly calculate essential airflow metrics for various duct sizes. It provides CFM, FPM, and FL values, simplifying HVAC system design and analysis.

Calculate CFMCalculate FPMCalculate FL
🔧 Utilities
(1)
free
9
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
SuperCool Slide Rule HVAC
by Designstein, llc
Free

This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.

Superheat & Subcooling chargingDuct sizing & layout calculatorCompressor windings troubleshooter
🔧 Utilities
(185)
free
10
Triple J Ductwork
Triple J Ductwork
Triple J Ductwork
by BiznetIS Net Inc
Free

This app allows users to request quotes for custom metal parts, including ductwork and signs. It features a part-picking tool and a space to input specific measurements for fabrication projects.

Custom part quotingPart picking toolMeasurement specification
🔧 Utilities
(2)
free
11
Duct Calculator
Duct Calculator
Duct Calculator
by OMIKRON MAKINE MUHENDISLIGI IC VE DIS TICARET SANAYI LIMITED SIRKETI
Free

This mobile application simplifies duct size calculations for various needs. It offers a straightforward way to determine the correct dimensions for your ductwork, ensuring efficient airflow and system performance.

Duct size calculationAirflow determinationEfficient system performance
🔧 Utilities
(1)
free
12
Duct Calculator
Duct Calculator
Duct Calculator
Ductulator & Duct Sizer
$19.99

This app allows HVAC professionals to quickly and accurately size new ducts or calculate the performance of existing ones. It supports both round and rectangular ductwork, offering precise calculations through direct entry or intuitive sliders. The tool provides live updates and outputs key performance metrics.

Size round and rectangular ductworkAdjust airflow, diameter, width, and heightDirect number entry for precision
🔧 Utilities
(179)
free
13
Duct Calculator Elite
Duct Calculator Elite
Duct Calculator Elite
HVAC Ductulator & Duct Sizing
$9.99

This app simplifies HVAC duct sizing calculations. It computes duct size, velocity, pressure drop, and flow rate with an intuitive interface. Supports various units and duct materials for precise HVAC design.

Calculate duct size, velocity, pressure drop, flow rateDuct Size by Airflow modeDuct Size by Dimension mode
🔧 Utilities
(225)
paid
14
Baker HVAC Pro+
Baker HVAC Pro+
Baker HVAC Pro+
HVAC Tools
Free

This app provides HVAC/R professionals with on-the-go access to product information and essential tools. It features real-time order tracking, a duct calculator, warranty verification, and branch location details. Users can also search for parts, view technical documents, and receive special offer notifications.

Real-time order statusDuct calculatorProduct availability and pricing
📊 Productivity
(587)
ad-supported
15
HVAC Duct Size Calculator
HVAC Duct Size Calculator
HVAC Duct Size Calculator
by Alan Cave
$0.99

This utility app assists HVAC design professionals in calculating duct sizes. It goes beyond basic calculations to provide a list of suitable duct sizes based on design criteria, offering an intuitive interface for precise adjustments.

Duct size calculationVelocity, friction, and volume calculationsList of even-sized ducts
🔧 Utilities
(1)
paid
16
Thermaflex Duct Calculator
Thermaflex Duct Calculator
Thermaflex Duct Calculator
by Gastite Products LLC
Free

This utility app helps HVAC engineers quickly calculate the recommended Thermaflex duct size for installations. Input project volume and friction loss to determine the optimal duct size based on established industry standards.

Calculate recommended duct sizeInput project volume and friction lossSelect Thermaflex product
🔧 Utilities
(1)
free
17
PT Ductulator
PT Ductulator
PT Ductulator
Duct Calculator
Free
📊 Productivity
(0)
18
Gemaire HVAC Pro+
Gemaire HVAC Pro+
Gemaire HVAC Pro+
HVAC Tools
Free

This app provides HVAC professionals with essential tools and product information to streamline their work. Access pricing, order status, real-time availability, and technical support. It also includes inventory management, warranty services, and helpful calculators.

View pricing and order statusReal-time product availabilitySearch for HVAC models and parts
📊 Productivity
(812)
free with in-app purchases
19
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
Duct Calculator - DuctCalc
HVAC Sizing & Psychrometric
Free

This app provides professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.

Duct sizing for round, rectangular, and flexible ductsFittings pressure drop calculationPsychrometric analysis with interactive chart
🔧 Utilities
(7)
free with in-app purchases
20
Greenheck Toolbox
Greenheck Toolbox
Greenheck Toolbox
by Greenheck
Free

This utility app provides two essential tools for HVAC professionals: a Fan Law Calculator to adjust fan performance based on changes in speed, and a Ductulator to quickly size ductwork. Easily calculate and determine duct dimensions and airflow with various input parameters.

Fan Law CalculatorDuctulator AppAdjust fan performance
🔧 Utilities
(3)
free

FAQ about Ductalator

Are there free ductalator apps for iPhone?
Yes — 14 of the top ductalator apps we rank are free to download, including Ductalator and SMACNA Duct-U-Lator.
Ductalator has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
We track 61+ ductalator apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.

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