EdgeSpace BTU Calculator
Load · CFM · Tonnage
$2.99 · Designed for iPad. Not verified for macOS.
Rule-of-thumb HVAC load and sensible CFM — offline on the job.
EdgeSpace BTU Calculator is an offline HVAC field tool for rule-of-thumb cooling load and sensible airflow.
Quick load: enter room area, a BTU/sq ft factor, and an editable climate multiplier. Get BTU/h, tons (12,000 BTU/h), and a suggested equipment range. Labeled RULE OF THUMB — not ACCA Manual J.
Airflow: CFM = BTU / (1.08 × ΔT °F), plus reverse solves. Sensible heat only. Units: BTU/h, kW, tons, CFM, L/s, °F/°C, sq ft/m².
WHAT YOU GET
• Rooms that add up
• Climate multiplier you can edit
• Live diagram
• PDF job ticket, share, and copy
• Local history and favorites
Not ACCA Manual J. Confirm Manual J / Manual D. No refrigerant tables. No account. No ads. No internet required.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Burak Kocatepe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Burak Kocatepe
- Size
- 5.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 17 more
- English, Czech, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- Copyright
- © 2026 EdgeSpace
