Grow room dehumidifier and AC sizing calculator
Enter your setup below and get a real equipment recommendation, including how many units you need. Works for an active grow room or a dry and cure room, since they're sized differently.
Total light wattage
3,000 W
Room size
64 ft²
Growth stage
Veg
Flower
Dehumidifier capacity needed
75 PPD
AC capacity needed
1 ton
AC recommendation
1x 12,000 BTU mini-split
Roughly 1 ton of cooling capacity
Bring this number to your installer, or ask us once mini-splits are in stock.
This calculator gives a solid working estimate. Ambient climate, canopy density, and irrigation frequency all shift the real number, so for a large commercial build, treat this as your starting point and confirm with an HVAC professional before finalizing equipment.