Aquarium Electricity Cost Calculator
Estimate aquarium heater, filter, pump, and lighting electricity cost.
Calculate aquarium electricity cost
How this calculator works
Aquarium equipment follows different schedules: filtration and circulation may run continuously, lights follow a timer, and heaters cycle based on room and water temperature.
Livestock health takes priority. Do not reduce required filtration, circulation, heating, aeration, or lighting solely to lower the estimate.
A 35-watt continuous load, 150-watt heater at 30% duty, and 30-watt light for eight hours uses about 2.16 kWh per day.
How to get a more accurate estimate
- Measure the complete system over several days.
- Use a realistic heater duty cycle for the season and room temperature.
- Follow species, filtration, oxygenation, and lighting requirements.
Frequently asked questions
Does a 150-watt heater use 150 watts all day?
No. A thermostat cycles it; the duty-cycle field estimates the active share of the day.
Can I turn the filter off at night?
Filtration and circulation requirements depend on the system and livestock; continuous operation is often essential.
Why measure several days?
Heater cycling and room temperature vary, so a multi-day average is more representative.
Results use the values you enter and the formula shown above. Real bills can include taxes, minimum charges, tiers, time-of-use pricing, cycling losses, and other adjustments. Use a recent bill or a plug-in energy meter when accuracy matters.