Minimum Ventilation Rate
Estimate moisture-control ventilation rate and fan timer settings.
Free Poultry House Engineering Calculators
Field-friendly tools to estimate ventilation, leakage, heating loss, evaporative cooling, and tunnel design. Save results directly to your farm records.
House Tightness / Leakage Area
Turn a static pressure test into leakage area and relative tightness rating.
Inlet System Effectiveness
Estimate how much minimum ventilation air enters through planned inlets versus cracks.
24 Hour Heating Estimate
Estimate daily propane waste and cost caused by unwanted house cracks.
Litter Drying Time
Calculate litter moisture removal and days to target before chick placement.
Evaporative Cooling Pad
Estimate pad cooling temperature drops, humidity, and water consumption.
Tunnel Ventilation Design
Size tunnel fan capacity and estimate operating static pressure.
Poultry Log
Optimize your house performance and flock profitability.
Save engineering calculations by house, compare previous flocks, and monitor daily water, feed, and mortality.