Pool Pump Operating Cost Calculator
Estimate how much electricity your pool pump costs to run. Enter the pump's power consumption, daily runtime, and your electricity rate. You can also compare a second operating schedule to see the difference in annual energy cost.
Calculate Your Pool Pump Cost
Enter your pump's actual wattage, daily runtime, and electricity rate.
Estimated Operating Cost
Schedule Comparison
Estimates assume constant pump wattage and daily runtime. Monthly costs use 30 days and annual costs use 365 days. Actual costs depend on pump operation and electricity rates.
How the Pool Pump Cost Calculator Works
The calculator converts your pool pump's wattage into kilowatts and multiplies it by the number of hours the pump operates each day. That determines daily electricity consumption in kilowatt-hours (kWh). The calculator then multiplies that energy consumption by your electricity rate.
Watts ÷ 1,000 × Hours Per Day × Electricity Rate = Daily Operating Cost
Example Pool Pump Operating Cost
If a variable-speed pool pump draws 500 watts and operates for 10 hours per day, it uses 5 kWh of electricity each day. At an electricity rate of $0.16 per kWh, that equals $0.80 per day, approximately $24 per 30-day month, or $292 per year.
For a deeper explanation of the factors that affect these numbers, see How Much Does a Variable-Speed Pool Pump Cost to Run?
Why Pump Speed Matters
Variable-speed pool pumps can operate at different power levels depending on their programmed speed and the hydraulic demands of the pool. Filtration often requires substantially less flow than higher-demand functions such as spa jets, cleaners, heaters, or water features.
Because of this, estimating operating cost from the pump's maximum horsepower or maximum wattage can be misleading. For the most useful estimate, enter the approximate wattage the pump actually draws at the speed you normally use.
If you're determining an appropriate operating speed, see What RPM Should I Run My Variable-Speed Pool Pump?
Where Can I Find My Pump's Wattage?
Many variable-speed pumps display current power consumption on the pump controller or connected app. Manufacturer documentation may also provide electrical or performance information.
If your pump runs at several different speeds during the day, calculate each operating period separately or use the comparison section above to see how different schedules affect annual cost.
Why Compare Two Pump Schedules?
Lower pump speed does not necessarily mean the pump needs to run for fewer hours. Variable-speed pumps are often programmed to operate longer at lower speeds while using less electricity than shorter periods at high speed.
The comparison tool lets you test different combinations of wattage and runtime instead of assuming that runtime alone determines operating cost.
Our guide to how long to run a variable-speed pool pump each day explains why the appropriate schedule depends on more than runtime alone.
Are These Costs Exact?
No. The results are estimates based on the wattage, runtime, and electricity price entered. Actual power consumption can change with pump speed, flow requirements, plumbing resistance, equipment operation, programming, and other conditions.
Your utility rate can also include tiers, time-of-use pricing, taxes, fees, or other charges that are not represented by a single electricity-rate input.
Understanding Variable-Speed Pool Pump Efficiency
Variable-speed pumps can match pump operation more closely to different pool functions instead of operating continuously at one high speed. Filtration can require substantially less flow than higher-demand pool functions, allowing the pump to operate at lower speeds when full flow is unnecessary.
The goal is not simply to run the pump at the lowest possible speed. The pump must still provide enough flow for filtration and any equipment operating at the same time. Our guide to variable-speed pool pump GPM explains how flow requirements affect operation.
For more information about pump sizing, flow, speed, efficiency, and operation, see our Complete Guide to Pool Pumps.
If you're comparing the operating cost of an older pump with a replacement, you can also compare current variable-speed pool pumps. Verify the exact pump's hydraulic capacity, voltage, plumbing connections, automation compatibility, and manufacturer specifications before purchasing.