Updated August 15, 2026 · WattCostLab Calculator
Pool Pump Electricity Cost Calculator
Estimate the electricity cost of a pool pump from its average operating power and filtration runtime.
Default inputs are examples, not claims about every product. Replace them with measured or manufacturer-specific values.
What makes the estimate more accurate?
Variable-speed pumps can use very different power at different speeds. If your pump changes speed during the day, use measured daily kWh or calculate each operating stage separately and add the results.
Related calculators
Appliance Electricity Cost Calculator and Electricity Cost by State.
Estimate only. Actual energy use depends on equipment, controls, climate and user behavior.
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Pool pump kWh: how to calculate daily and monthly use
Convert pump watts to kilowatts, multiply by daily runtime to estimate kWh per day, then multiply by the number of operating days. Use your electricity price per kWh to convert energy use into daily, monthly or seasonal cost.
Variable-speed pool pumps need a runtime-based estimate
A variable-speed pump may operate for more hours at a lower power level. Use the average power at the actual programmed speed rather than assuming the motor runs at full rated power for every hour.
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Quick questions
How do I calculate pool pump kWh?
Pump kW multiplied by operating hours gives kWh. For example, use the average electrical input at the selected speed rather than horsepower alone.
Does running a pool pump longer always cost more?
Total cost depends on both runtime and power. A variable-speed pump can sometimes run longer at a much lower power level, so compare total kWh rather than hours alone.