Drying Room Calculator

Drying room capacity from harvest weight and rack spacing.

Wet harvest weight (lbs)

Drying method (0-1)

Target drying days

Target RH (%)

Room temperature (°F)

Tab to move between fields

Expected dry weight (lbs)

Expected dry weight (oz)400

Water to remove (lbs)75

Required room (sq ft)200

Dehumidifiers needed1

Dehumidification (pints/day)6.3

Airflow needed (CFM)27

Adjusted drying days12

Hanging line needed (ft)100

Mold risk (1-3)1

Pints Per Hour0.26

Mold RiskLOW

How to Use This Calculator

Enter wet harvest weight in lbs and select drying method (whole-plant hanging or rack/screen).
Set target drying days, target relative humidity (%), and room temperature (°F).
Review Expected Dry Weight (lbs), Room Required (sq ft), Dehumidifiers Needed, and Mold Risk Score.
Keep RH below 60% and temperature at 60–65°F to slow-dry and preserve terpene profiles.

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