# BTU Calculator - Data Centers — Cooling Requirements > Data center cooling capacity estimation tool for temperate and continental climates. (iPhone/iPad app by Cristinel Bontas.) - Source: https://appshunter.io/ios/app/btu-calculator-data-centers/id685976218 (this page in markdown: same URL + `.md`) - Developer: [Cristinel Bontas](https://appshunter.io/developer/645866051) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 4.60/5 from 313 App Store ratings · 16 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 23 MB - Languages: American English - Released: 2013-08-14 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/btu-calculator-data-centers/id685976218/reviews.md ## What is BTU Calculator? Choosing the right data center cooling system for your data center is essential to the success of all companies that depend on achieving business-critical continuity. The application uses a simple calculation method to estimate the cooling capacity you'll need to maintain a temperature of 24°C with a humidity level of between 30 and 50 percent for regions that have a climate which ranges from temperate to continental. The features included in this app: • will consider such factors as the amount of space to be cooled, the number of occupants, the orientation and R-value of windows, the total heat output of a data center and more. • allows you to instantly view total cooling load results as you update input data Please note that this calculator can only gauge a rough estimate. This application should only be used as a guide. As always you should always consult a professional and qualified contractor. ## Key features - Estimate cooling capacity - Maintain 24°C and 30-50% humidity - Consider space, occupants, window R-value - Calculate total heat output - Instant cooling load results - Guide for system selection ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $0.99 | one-time | ## Recent user reviews (10 of 16) All indexed reviews: https://appshunter.io/ios/app/btu-calculator-data-centers/id685976218/reviews.md ### 1/5 — Very poor advertising *2022-07-24, version 5.1* Let’s you get 3/4 of the way through your calculations and then locks you into an advert that wouldn’t interest you in the slightest when you are trying to size an aircon unit!!!! ### 1/5 — Do not pay for the app !! *2022-02-24, version 5.0* I paid the small fee to get rid of the Ads but they still come back meaning if you use it a lot you have to keep erasing it to use again very frustrating 🤬 ### 2/5 — Has Potential *2021-12-31* Does not include east and west windows or factor in insulation, ceiling height, etc. I'll just stick with my free, homemade excel calculator instead. ### 5/5 — Top por favor a manda a tualizaçao para o português *2021-03-10, version 4.0* Versão em português Por favor 🙏 atualização por favor eu tou usando o app ele top ### 3/5 — EVALUACIÓN *2020-10-12, version 4.0* Es sencilla y da una idea aproximada de BTU’s a reemplazar, pero la pueden mejorar, considerando materiales, remplazo de aire, asoleamiento en losas, etc. La calificación que doy es porque se cierra la aplicación antes de poder ingresar todos los datos ### 5/5 — BTU cal *2020-07-11, version 4.0* Works it out spot on ### 5/5 — Eng *2020-06-28* Fabulous app to mechanical engineers. ### 5/5 — Best Heating calculator App *2019-12-28, version 4.0* Really good and accurate room heating calculator! I must for all Heating Engineers!! ### 5/5 — Сердечно благодарю *2019-10-11, version 4.0* Огромное спасибо за прекрасную программу. Пользуюсь уже 3 года, все подсчёты правильны и корректны. РЕСПЕКТ ПРОГРАММИСТУ!!! ### 5/5 — Projects Engineer *2018-11-27, version 4.0* Excellent ## Frequently asked questions about BTU Calculator ### What does the BTU Calculator app do? This application helps you estimate the cooling capacity (BTU) required for your data center. It considers various environmental factors and equipment heat output to provide a rough estimate for maintaining optimal temperature and humidity levels. ### What factors does the app consider for cooling calculations? The app takes into account the amount of space to be cooled, the number of occupants, the orientation and R-value of windows, and the total heat output of the data center, among other factors. ### Is this app free to use? The application is free to download and use, but it does include in-app purchases and advertisements. These may offer additional features or an ad-free experience. ### What is the target climate for this calculator? This calculator is designed for regions with a climate that ranges from temperate to continental. It aims to help maintain a temperature of 24°C with a humidity level between 30 and 50 percent. ### Can I rely on this app for precise cooling system design? No, this calculator is intended to gauge a rough estimate and should only be used as a guide. For precise cooling system design and implementation, it is always recommended to consult with a professional and qualified contractor. ## Version history (last 5 releases) ### 5.1 — 2022-04-04 Ver. 5.1 - Fixes and optimisations Ver. 5.0 Visible changes: - Fixes and optimisations for iOS 15 - UI improvements for iPad mini Invisible changes: - Internally, the application has been almost completely rewritten. Please contact cristynodev@gmail.com with any issues or suggestions Feedback is always welcome. Thank you for your wonderful support! ### 5.0 — 2021-11-08 Visible changes: - Fixes and optimisations for iOS 15 - UI improvements for iPad mini Invisible changes: - Internally, the application has been almost completely rewritten. Please contact cristynodev@gmail.com with any issues or suggestions Feedback is always welcome. Thank you for your wonderful support! ### 4.0 — 2018-09-18 - minor fixes and optimisations ### 3.0 — 2016-10-03 - minor fixes and optimisations ### 2.0 — 2014-11-12 - support for iPhone 6 and iPhone 6 Plus - minor fixes and optimizations for iOS 8 Plus all great features from 1.4: - option for the imperial units - now you have the ability to change the multiply factor for calculating the BTU requirement! ## Apps similar to BTU Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Cr Calc – Cold Room Calculator](https://appshunter.io/ios/app/cr-calc-cold-room-calculator/id1443169073) | 5.0 (2) | Free | Utilities | | [Bluon HVAC](https://appshunter.io/ios/app/bluon-hvac/id1357521880) | 4.8 (4,450) | Free | Utilities | | [AC Calculator - HVAC Sizing](https://appshunter.io/ios/app/ac-calculator-hvac-sizing/id1537174761) | 4.8 (20) | Free | Utilities | | [Installer App](https://appshunter.io/ios/app/installer-app/id423984641) | 3.0 (7) | Free | Utilities | | [Allday HVAC Calc](https://appshunter.io/ios/app/allday-hvac-calc/id6446276144) | 5.0 (1) | Free | Utilities | | [Blue Cold Heat Load Calculator](https://appshunter.io/ios/app/blue-cold-heat-load-calculator/id6590624925) | 5.0 (1) | Free | Utilities | ## More apps by Cristinel Bontas - [RF Haversine - Radio Profile](https://appshunter.io/ios/app/rf-haversine-radio-profile/id645866008) - [RF Haversine Lite - Radio Link](https://appshunter.io/ios/app/rf-haversine-lite-radio-link/id654456026) - [iStereo70](https://appshunter.io/ios/app/istereo70/id662608540) - [The Four Seasons - educational game for children and babies](https://appshunter.io/ios/app/the-four-seasons-educational-game-for-children-and-babies/id680341208) - [Margin/Selling/Cost Calculator](https://appshunter.io/ios/app/marginsellingcost-calculator/id774767008) All apps by Cristinel Bontas: https://appshunter.io/developer/645866051 ## Related topics [btu](https://appshunter.io/ios/topics/btu) · [btu calculator](https://appshunter.io/ios/topics/btu-calculator) · [cool calc](https://appshunter.io/ios/topics/cool-calc) · [data center nation](https://appshunter.io/ios/topics/data-center-nation) · [hvac load plus](https://appshunter.io/ios/topics/hvac-load-plus) · [dometic mobile cooling](https://appshunter.io/ios/topics/dometic-mobile-cooling) · [heat load calculator](https://appshunter.io/ios/topics/heat-load-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*