Dairy Ventilation
Productivity
Free · Designed for iPad. Not verified for macOS.
Welcome to the Dairy Ventilation Calculator- a free UW-Madison Extension tool for dairy producers to support decisions about heat stress management and mechanical ventilation in dairy barns.
FEATURES
- THI (Temperature-Humidity Index) with location-based weather
- Adopting Fans calculator — size and select fans for your barn
- Evaluating Ventilation calculator — assess existing ventilation performance
- Fan Efficiency comparison chart — compare fan models side by side
- Payback Period analysis — estimate return on investment for upgrades
WHO IT'S FOR
- Dairy producers managing heat stress in cow housing
- Farm managers planning fan upgrades or new ventilation systems
- Extension educators and dairy consultants
ABOUT
Developed by Nesli Akdeniz in Biological Systems Engineering at UW-Madison as an educational and decision-support tool for dairy producers. Calculations follow established methods used in dairy ventilation design. Results are intended to give general guidance. Final decisions and outcomes remain the responsibility of the user.
Ratings & Reviews
Corrected the Temperature-Humidity Index (THI) calculation for improved accuracy
The developer, University of Wisconsin-Madison Shared Apps, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Location
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- University of Wisconsin-Madison Shared Apps
- Size
- 28.3 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Board of Regents of the University of Wisconsin System