About this app
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.
Latest release
What’s New
Corrected the Temperature-Humidity Index (THI) calculation for improved accuracy
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 16, 2026 · 3:03 PM Free
Screenshots
