Grow Room Electricity Calculator
Estimate daily and monthly electricity costs for your indoor grow room lights, fans, and pumps.
Inputs
W
hrs
W
W
$/kWh
Results
Monthly Cost
$34.16
Annual Cost
$409.92
Daily Usage8.76 kWh
Monthly Usage262.8 kWh
How to Use This Calculator
- Enter the total wattage of all your grow lights (e.g., 400W HPS or 240W LED) and the hours they run per day.
- Enter fan wattage (total of all inline and oscillating fans, typically run 24/7) and pump wattage for hydro systems.
- Enter your electricity rate in $/kWh — find this on your utility bill.
- Review Monthly Cost and Annual Cost to understand the total operating expense of your grow room.
- Use the Daily kWh figure to compare different lighting setups or identify energy-saving opportunities.
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