Ductulator: HVAC Calculator by Foster Apps LLC
Airflow, CFM & Duct SizingEditor's Choice
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FreeIn-App Purchases
Best apps like Duct Calculator: HVAC Sizing
10+ similar apps compared and reviewed
4.6 avg rating
10 free apps
Updated September 2026
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
HVAC Duct Calculator by MEP TASARIM MUHENDISLIK VE MUSAVIRLIK LIMITED SIRKETI
Duct sizing made simpleStrong Contender
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DuctSizer: Duct Calculator
HVAC sizing: friction & CFM
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DuctPro: Duct Size Calculator
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Duct Mate: HVAC Duct Sizer
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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
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Ductulator - Duct Calculator
HVAC Airflow Sizing & Design
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
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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
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InspectorIQ
Scan. Decode. Inspect.
Free
Instantly identify HVAC and water heater equipment using your camera. This tool decodes serial numbers, offers AI-powered guidance for repairs, and suggests local professionals, saving you valuable time in the field.
Camera-based serial number captureHVAC serial number decodingWater heater serial number decoding
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