Best Duct Calculator Elite Apps

216+ iOS apps curated and reviewed

4.4 avg rating
12 free apps
Updated June 2026

Every iPhone needs a few good duct calculator elite apps. We benchmark 216+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Duct Calculator Elite Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Duct Calculator EliteDuct Calculator Elite$9.994.8★ (225)NoNoJul 2026
2Duct Calculator - DuctCalcDuct Calculator - DuctCalcFree5.0★ (7)NoYesJul 2026
3Ductulator - Duct SizingDuctulator - Duct Sizing$3.994.7★ (272)NoNoJul 2026
4SMACNA Duct-U-LatorSMACNA Duct-U-LatorFree5.0★ (1)NoNoMay 2026
5Thermaflex Duct CalculatorThermaflex Duct CalculatorFree2.0★ (1)NoNoMay 2026
6Duct CalculatorDuct CalculatorFree1.0★ (1)NoNoJun 2026
7Duct Calculator S&PDuct Calculator S&PFree5.0★ (1)NoNoMay 2026
8Duct CalculatorDuct Calculator$19.994.5★ (179)NoNoJul 2026

Top Picks for Duct Calculator Elite

Duct Calculator Elite#1

Duct Calculator Elite by Cyberprodigy LLC

HVAC Ductulator & Duct Sizing
Editor's Choice
🔧 Utilities
4.8(225 ratings)
$9.99
Duct Calculator Elite screenshot 1
Duct Calculator Elite screenshot 2
Duct Calculator Elite screenshot 3
Duct Calculator Elite screenshot 4
Duct Calculator Elite screenshot 5

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.

Duct Calculator - DuctCalc#2

Duct Calculator - DuctCalc by Mikhail Nikitin

HVAC Sizing & Psychrometric
Strong Contender
🔧 Utilities
5.0(7 ratings)
FreeIn-App Purchases
Duct Calculator - DuctCalc screenshot 1
Duct Calculator - DuctCalc screenshot 2
Duct Calculator - DuctCalc screenshot 3
Duct Calculator - DuctCalc screenshot 4
Duct Calculator - DuctCalc screenshot 5
Duct Calculator - DuctCalc screenshot 6

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.

Ductulator - Duct Sizing#3

Ductulator - Duct Sizing by Wassim Murr

HVAC Duct Design Calculator
Worth Considering
📊 Productivity
4.7(272 ratings)
$3.99
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 Duct Calculator Elite apps to explore

4
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
SMACNA Duct-U-Lator
Size Simple HVAC Duct Runs
Free

This tool simplifies HVAC duct sizing for professionals. It quickly calculates dimensions for rectangular, round, and oval ducts based on airflow, friction loss, and velocity, ensuring optimal ventilation system performance.

Rectangular, round, and oval duct sizingReal-time calculation updatesConverts duct shapes and sizes
💼 Business
(1)
free
5
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
6
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
7
Duct Calculator S&P
Duct Calculator S&P
Duct Calculator S&P
by S&P SISTEMAS DE VENTILACION SL.
Free

This utility app performs essential calculations for ventilation systems. It offers tools for converting duct sizes, determining air parameters like speed and airflow, and calculating pressure drops. It also includes a unit converter for various measurements.

Diameter conversion (circular to rectangular)Ventilation parameter calculation (diameter, speed, airflow, pressure)Pressure drop calculation for straight sections and system elements
🔧 Utilities
(1)
free
8
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
9
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
💰 Finance
(23K)
free with in-app purchases
10
Calculator Pro Elite
Calculator Pro Elite
Calculator Pro Elite
Best Calculator
$9.99

A highly customizable calculator app offering a modern interface and powerful features. Personalize themes, button layouts, and visual elements to your preference. Track and save calculations with a detailed history, and access scientific functions when needed.

Customizable themes with gradients, colors, or photosMultiple button shapes and color customizationDual-line display for input and result
🔧 Utilities
(2K)
free with in-app purchases
11
Calculator - Free Calculator
Calculator - Free Calculator
Calculator - Free Calculator
by 祥祎 刘
Free

A straightforward and reliable calculator application designed for iPad and iOS 9. It offers a standard calculation experience with a charming piano sound effect and is optimized for high-resolution screens.

Standard calculator functionalityOptimized for iPad & iOS 9High-resolution screen optimization
🔧 Utilities
(1.4K)
free
12
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
13
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Easy Basic Calculator
Free

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Large buttonsDual-line display18 color themes
🔧 Utilities
(13K)
ad-supported
14
Sci:Pro Calculator
Sci:Pro Calculator
Sci:Pro Calculator
by Jerry Montgomery
Free

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

Multi-mode calculator (Basic, Scientific, Programmer)Calculation historyShare results via email
🔧 Utilities
(3.6K)
free
15
Conduit Bender Elite - Calc
Conduit Bender Elite - Calc
Conduit Bender Elite - Calc
Calculator for Electricians
$7.99

This app is a specialized calculator for electricians to simplify conduit bending calculations. It offers detailed diagrams and step-by-step guidance for various bend types, helping users save time and focus on installation. Users can customize settings for different conduit sizes and units of measurement.

Conduit bending calculationsDiagrams and step-by-step helpMultiple bend types supported
🔧 Utilities
(1.6K)
free with in-app purchases
16
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.

High precision calculation engineResults displayed while typingMultiple undo functionality
🔧 Utilities
(268)
ad-supported
17
PCalc Lite
PCalc Lite
PCalc Lite
The Best Calculator
Free

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

Optional RPN modeMultiple undo and redoUnit conversions and constants
🔧 Utilities
(214)
free with in-app purchases
18
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
🔧 Utilities
(39K)
free with in-app purchases
19
Calculator!
Calculator!
Calculator!
by 7th Gear
$0.99

This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.

Standard and scientific calculator modesCustomizable look (iPad only)Portrait and landscape orientation
🔧 Utilities
(4.2K)
free with in-app purchases
20
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid

FAQ about Duct Calculator Elite

What are the best duct calculator elite apps for iPhone?
Duct Calculator Elite tops our duct calculator elite apps ranking as of June 2026, with a 4.8-star average from 225 App Store ratings, and it's priced at $9.99.
Yes — 12 of the top duct calculator elite apps we rank are free to download, including Duct Calculator - DuctCalc and SMACNA Duct-U-Lator.
Duct Calculator Elite has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 216+ duct calculator elite apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Duct Calculator Elite is a professional tool designed to simplify HVAC duct sizing. It allows users to calculate essential parameters like duct size, air velocity, pressure drop, and flow rate for ductwork systems. The app features an intuitive interface for precise value entry and offers multiple calculation modes to suit different design needs.
Duct Calculator Elite is a paid application. The price is a one-time purchase, and there are no ongoing subscription fees or in-app purchases mentioned for its core functionality. This provides users with full access to all its features upon purchase.