# HVAC Calculator: BTU & AC Load

> HVAC Calculator: BTU & AC Load (iPhone/iPad app by Coffee Room SIA.)

- Source: https://appshunter.io/ios/app/hvac-calculator-btu-and-ac-load/id6783446314 (this page in markdown: same URL + `.md`)
- Developer: [Coffee Room SIA](https://appshunter.io/developer/1294581315)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: Arabic, Bangla, Dutch, English, French, German, Hindi, Indonesian, Italian, Japanese and 10 more
- Released: 2026-06-28
- Data updated: 2026-07-01
- User reviews in markdown: https://appshunter.io/ios/app/hvac-calculator-btu-and-ac-load/id6783446314/reviews.md

## What is HVAC Calculator?

Size any system in seconds. HVAC Calculator gives technicians, installers, and DIY homeowners fast, accurate BTU and load numbers — no spreadsheets, no guesswork.

Whether you're sizing an air conditioner, balancing a duct run, or checking a refrigerant charge, every tool you need lives in one app.

WHAT YOU CAN CALCULATE
• BTU & Cooling Load — find the right AC size for any room by square footage, climate, and sun exposure
• Heating Load — size furnaces and radiators with confidence
• Ductulator — duct sizing by friction rate, velocity, and CFM
• Tonnage Converter — instant BTU ⇄ ton conversions
• Refrigerant Charge — superheat and subcooling checks
• Room & Area — square footage and volume in metric or imperial

BUILT FOR THE FIELD
• Works offline — no signal needed on the job site
• Metric and imperial units
• Clean, fast interface designed for gloved hands
• Save and share your results
• Formulas based on current HVAC industry standards

TRUSTED BY HVAC PROS
From apprentices studying for the EPA 608 to seasoned installers, HVAC Calculator replaces bulky charts and slide rules with one tool in your pocket.

Download HVAC Calculator free and size your next job right the first time.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| HVAC Calculator Pro | $17.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-06-29

No release notes.

## More apps by Coffee Room SIA

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All apps by Coffee Room SIA: https://appshunter.io/developer/1294581315

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*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 2026-07-01.*