Accurately calculate the cooling capacity needed for cold rooms, storage, and freezers. Input room details, insulation, temperatures, and product information for precise, data-driven recommendations. Generate shareable PDF reports for your projects.




10+ similar apps compared and reviewed
Looking for something like BTU Calculator? 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.




Accurately calculate the cooling capacity needed for cold rooms, storage, and freezers. Input room details, insulation, temperatures, and product information for precise, data-driven recommendations. Generate shareable PDF reports for your projects.






This app provides HVAC professionals with a digital toolbox for everyday tasks. It offers product information, installation guides, and advanced features to streamline work, including project management and hydronic balancing tools.



This utility app simplifies HVAC sizing by calculating BTU/h capacity and recommending equipment. It offers unit conversions, price estimates, and energy consumption comparisons. Advanced features can be unlocked via in-app purchases.


Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.


This app assists in calculating heat gain for cold rooms, supporting various heat sources and construction materials. It offers project organization and in-app help, with an optional subscription for PDF export.


This app offers three specialized modules for HVAC engineers: a psychrometric calculator for air properties, a pipe calculator for fluid dynamics and selection, and a duct calculator for air speed and pressure loss. It provides detailed calculations and reference formulas in both SI and IP units.


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.


This app assists service engineers in the air conditioning industry with Daikin VRV, Altherma, Split, and Sky Air equipment. It provides tools for fault finding, including fault codes, refrigerant calculations, and diagnostic checks. The application also supports outdoor unit settings and operational procedures.


This app helps HVAC/R technicians identify and source the correct parts for repairs, whether for warranty or non-warranty work on any brand. It offers tools for troubleshooting, calculating system capacity, and locating nearby parts centers.


This app provides HVAC inspection tools and guidelines for home inspectors. It helps estimate equipment age, size, and requirements, giving inspectors confidence in their reports.