Best apps like Duct Size Calculator - HVAC

16+ similar apps compared and reviewed

4.5 avg rating
3 free apps
Updated July 2026

Duct Size Calculator is great, but it's not the only option. Explore 16+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to Duct Size Calculator

HVAC & Sheet Metal Calculator#1

HVAC & Sheet Metal Calculator by Calculated Industries

Construction Math & Trade Pro
Editor's Choice
🔧 Utilities
5.0(40 ratings)
FreeIn-App Purchases
HVAC & Sheet Metal Calculator screenshot 1
HVAC & Sheet Metal Calculator screenshot 2
HVAC & Sheet Metal Calculator screenshot 3
HVAC & Sheet Metal Calculator screenshot 4
HVAC & Sheet Metal Calculator screenshot 5
HVAC & Sheet Metal Calculator screenshot 6

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

AI Ductulator#3

AI Ductulator by pasquale dipaola

Worth Considering
🔧 Utilities
3.9(9 ratings)
$3.99
AI Ductulator screenshot 1
AI Ductulator screenshot 2

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.

More apps like Duct Size Calculator

4
Hydraulic Separator
Hydraulic Separator
Hydraulic Separator
Hydraulic separator sizing app
$0.99
🔧 Utilities
(0)
5
Hydraulic Pressure Calculator
Hydraulic Pressure Calculator
Hydraulic Pressure Calculator
Hydraulic System of 2 Pistons
$2.99

This physics and math calculator determines the force generated by a piston-cylinder based on pneumatic or hydraulic pressure and bore diameter. It provides instant calculations with copyable results and includes reference formulas. Supports various units and high decimal precision.

Instant calculationCopyable resultsIncluded formulas
🔧 Utilities
(1)
paid
6
UEi DTHA2
UEi DTHA2
UEi DTHA2
by Kane Asia Inc.
Free

This app connects to a wireless adapter to measure airflow velocity, volumetric flow, temperature, and relative humidity. It allows adjustments for ducting and offers averaging options for readings.

Measure airflow velocityMeasure volumetric flowMeasure temperature
🔧 Utilities
(4)
free
7
Duct Sizer
Duct Sizer
Duct Sizer
Classic Design Tool
$3.99

This tool helps HVAC professionals quickly determine appropriate duct sizes. It functions like traditional duct sizing wheels, allowing users to adjust scales for pressure drop or velocity to find optimal dimensions for round and rectangular ducts. Supports both imperial and metric units.

Quick duct size determinationPressure drop and velocity sizingRound and rectangular duct support
🔧 Utilities
(16)
paid
8
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
9
Transformer Calculator Plus
Transformer Calculator Plus
Transformer Calculator Plus
Step-up Step-down Transformer
$2.99

This utility app calculates key parameters for transformers, including voltage, current, and turns ratio. It helps determine if a transformer is step-up or step-down, essential for power conversion applications.

Calculate primary and secondary voltageCalculate primary and secondary currentCalculate transformer turns ratio
🔧 Utilities
(4)
paid
10
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