Best Duct Calculator alternatives: apps like Duct Calculator: HVAC Sizing

📊 Productivity

Whether you want more options like Duct Calculator or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Duct Calculator

Ductulator: HVAC Calculator by Foster Apps LLC

Airflow, CFM & Duct Sizing

Editor's Choice

0.0(0 ratings)

FreeIn-App Purchases

Ductulator: HVAC Calculator screenshot 1

Ductulator: HVAC Calculator screenshot 2

Ductulator: HVAC Calculator screenshot 3

Ductulator: HVAC Calculator screenshot 4

Ductulator: HVAC Calculator screenshot 5

DuctPro: Duct Size Calculator by Marko Petro Hankevych

Duct Sizer & Static Pressure

Strong Contender

5.0(1 ratings)

FreeIn-App Purchases

DuctPro: Duct Size Calculator screenshot 1

DuctPro: Duct Size Calculator screenshot 2

DuctPro: Duct Size Calculator screenshot 3

DuctPro: Duct Size Calculator screenshot 4

DuctPro: Duct Size Calculator screenshot 5

Calculate ductwork sizes instantly for various shapes including round, rectangular, flex, and flat-oval. Track static pressure per job and generate client-ready PDF schedules. Works offline and supports both imperial and metric units.

DuctPro by High Intent Labs

HVAC Duct Sizing Calculator

Worth Considering

0.0(0 ratings)

Free

More apps like Duct Calculator

HVAC Duct Calculator

Duct sizing made simple

(0)

Ductulator - Duct Calculator

HVAC Airflow Sizing & Design

Duct sizing for round, rectangular, and flexible ductsFittings pressure drop calculationPsychrometric analysis with interactive chart

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.

free with in-app purchases

(36)

Duct Mate: HVAC Duct Sizer

Duct Sizing & Airflow Calc

(0)

DuctSizer Pro

by LEONARDO NOVOA

Calculate CFM from duct sizeFind duct sizes from CFMSupports square, round, and oval duct

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.

(3)

free

HVAC Calculator & Ductulator

Duct Size, PT Chart, Superheat

(0)

Pressure Drop & Friction Rate

Air Duct Size Calculator

Duct sizing by velocity or frictionExisting duct analysisPressure-drop calculations

This tool helps HVAC professionals quickly size ducts, check airflow, and perform pressure calculations. It offers detailed engineering values and supports both imperial and metric units for practical on-site work.

(1)

free

HVAC Calculator: BTU & AC Load