Lighting & Ventilation Calculator
Enter your grow room dimensions to get minimum, optimum and maximum lighting wattage, ventilation airflow (CFM) and power requirements.
Results
Minimum — 25W per sq ft
-Watts
-CFM
-Amps
Optimum — 40W per sq ft
-Watts
-CFM
-Amps
Maximum — 60W per sq ft
-Watts
-CFM
-Amps
At maximum light intensity, CO2 supplementation is strongly recommended — plants will max out photosynthesis without it.
Electrical Cost Calculator
Work out exactly what your grow room costs to run. Find your cost per kWh on your electricity bill , rates vary by country and provider.
Running Costs
Per Hour
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Per Day (12h flower)
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Per Day (18h veg)
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Per Day (24h)
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Weekly Costs
Week of Flower (12h)
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Week of Veg (18h)
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Week of Veg (24h)
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Unit Conversions
Type in either field to convert instantly. Useful for translating between metric and imperial when following grow guides.
Temperature
Celsius °C
↔
Fahrenheit °F
Length
Feet (ft)
↔
Metres (m)
Feet ↔ Millimetres
Feet (ft)
↔
Millimetres (mm)
Volume
Cubic Metres (m³)
↔
Litres (L)
Airflow
Litres / min
↔
Litres / sec
Weight — Small
Grams (g)
↔
Ounces (oz)
Weight — Large
Pounds (lb)
↔
Kilograms (kg)