Plan space, power, cooling, moisture and water with transparent assumptions instead of mystery rules of thumb.
Plan a legal cannabis grow room with room area, volume, fixture count, connected lighting load, monthly electricity cost, canopy space and ventilation CFM estimates.
Open calculator →Calculate grow-light electricity cost from fixture wattage, fixture count, hours per day and your utility rate. See daily, monthly and annual kWh and estimated heat load.
Open calculator →Estimate a grow room cooling load from lighting, equipment, dehumidifiers and people. Convert connected watts to design BTU per hour and approximate cooling tons.
Open calculator →Estimate grow-room dehumidifier capacity in pints per day from your expected daily moisture load and a safety factor. Convert gallons, pints and liters instantly.
Open calculator →Estimate usable canopy area and plant positions from room dimensions, aisle allocation and square feet per plant. Built for legal cultivation space planning.
Open calculator →Estimate daily, weekly and monthly irrigation water use from plant count, gallons per event and irrigation frequency. Add water cost for a utility estimate.
Open calculator →These tools are designed to answer narrow operational questions quickly. Each page shows the formula, a worked example, cautions and links to deeper guides. Inputs stay in your browser; the calculators do not require an account.
For regulated operations, use the tools as planning aids and verify legal, tax, engineering and compliance requirements independently. The goal is to make the math clear—not to hide uncertainty behind a single magic answer.
