Best Ductulator alternatives: apps like Ductulator - Duct Calculator

10+ similar apps compared and reviewed

4.8 avg rating
9 free apps
Updated October 2026

Looking for something like Ductulator? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Ductulator

Digiduct#1

Digiduct by Syska Hennessy Group

Duct-Sizing App
Editor's Choice
🔧 Utilities
4.6(11 ratings)
Free
Digiduct screenshot 1
Digiduct screenshot 2
Digiduct screenshot 3
Digiduct screenshot 4
Digiduct screenshot 5

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.

More apps like Ductulator

4
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
HVAC Load Calculator Manual J
AC, Heat Pump & Furnace Sizing
Free

This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

Multiple accuracy levels (Simple, Moderate, Pro)Offline-ready calculationsProfessional PDF report generation
🔧 Utilities
(43)
free with in-app purchases
5
Ductulator: HVAC Calculator
Ductulator: HVAC Calculator
Ductulator: HVAC Calculator
Duct Sizing Calculator
Free
🔧 Utilities
(0)
6
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
HVAC & Sheet Metal Calculator
Construction Math & Trade Pro
Free

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.

Sheet metal calculations (radius, offset, wrapper length)Trigonometric functions (sine, cosine, tangent, arc)HVAC specific calculations (fan law, CFM, velocity)
🔧 Utilities
(87)
free with in-app purchases
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
HVAC Calculator & Ductulator
HVAC Calculator & Ductulator
HVAC Calculator & Ductulator
Duct Size, PT Chart, Superheat
Free
🔧 Utilities
(0)
9
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
(234)
paid
10
DuctSizer Pro
DuctSizer Pro
DuctSizer Pro
by LEONARDO NOVOA
Free

This tool quickly calculates HVAC duct sizes based on airflow and friction loss. It supports various duct shapes and provides key airflow values for field use.

Calculate CFM from duct sizeFind duct sizes from CFMSupports square, round, and oval duct
🔧 Utilities
(3)
free