Powerful Features
Everything you need for professional HVAC calculations
BTU Calculations
Calculate heating and cooling loads accurately
Duct Sizing
Size ducts for optimal airflow and efficiency
Airflow Calculations
CFM calculations for any application
Unit Conversions
Convert between common HVAC units instantly
Privacy First
All calculations done locally on your device
Works Offline
No internet connection required
Your Privacy Matters
HVAC Calculators is designed with privacy at its core
- No account or sign-up required
- All calculations done locally
- No tracking or analytics
- Your data never leaves your device
- Complete control over your information
Technical Excellence
Built With
- SwiftUI for modern UI
- Native iOS performance
- Core Data for saved calculations
- Industry-standard formulas
Requirements
- iOS 15.0 or later
- iPhone or iPad
- Less than 15MB storage
- No internet required