How Much Does a Pool Pump Cost to Run per Month? (2026 Data)

A 1,500-watt pool pump running eight hours a day costs about $67.79 per 30-day month at the April 2026 U.S. average residential electricity price. The calculation is 1.5 kW × 8 hours × 30 days × $0.1883/kWh; a pool pump's actual wattage and schedule are therefore more important than a generic annual estimate.

Key takeaways

• A 1,500-watt pump used eight hours daily consumes 360 kWh in 30 days.
• At 18.83¢/kWh, 360 kWh costs about $67.79 per month.
• A 400-watt low variable-speed setting at the same schedule is about $18.08 per month.
• A 1,900-watt single-speed example at the same schedule is about $85.87 per month.

How much electricity does a pool pump use each month?

A 1,500-watt pump on an eight-hour daily schedule uses 360 kWh in a 30-day month, which costs about $67.79 at the cited national average rate. Pool size, plumbing, pump speed, filter condition, and the required turnover schedule can change the true run time. This is a wattage-based estimate because annual kWh depends on how each pool is operated.

How the calculation works

Start with 1,500 W ÷ 1,000 = 1.5 kW. Then 1.5 kW × 8 hours/day × 30 days = 360 kWh. At $0.1883/kWh, 360 kWh costs $67.79. This is intentionally a simple calculation readers can replace with their pump's measured watts and their own utility rate.

The site uses the same transparent calculation in its methodology.

Why can pool-pump cost vary by more than $60 a month?

Pump speed and schedule dominate. At eight hours a day, WattCost's 400-watt low variable-speed example is about $18.08 a month at the same rate, while the 1,900-watt single-speed example is about $85.87. The right schedule must still meet pool-maintenance needs, so do not reduce run time or speed without checking the manufacturer's and pool professional's guidance.

How to get a more useful number

Read the pump's actual watts at the speed you use, record the daily hours, and enter both into a calculator with your local electricity rate. A variable-speed pump should be measured at its operating speed, not estimated solely from a horsepower label.

Start with WattCost's pool-pump calculator.

For the related buying decision, see the single-speed versus variable-speed pool-pump guide.

FAQ

How much does a pool pump cost per day? The 1,500-watt, eight-hour example costs about $2.26 per day at 18.83¢/kWh. Multiply the pump's kilowatts by its daily hours and your electricity rate for a personal estimate.

Does a variable-speed pool pump save electricity? A lower measured wattage uses fewer kWh for each hour it runs. The actual savings depend on the speed schedule, pump, plumbing, and pool requirements, so calculate from measured operating watts rather than a generic claim.

Is eight hours a day right for every pool? No. Eight hours is a calculator default for a common residential schedule, not a universal prescription. Follow pool-equipment guidance and local needs, then calculate cost from the schedule you actually use.

Why is this a wattage estimate instead of certified model data? ENERGY STAR pool-pump certification focuses on pumping efficiency, while annual electricity use varies with runtime and speed. A transparent watts-times-hours calculation is more honest for a specific pool.

Data notes & sources

This guide uses WattCost's pool-pump calculator examples and EIA's April 2026 U.S. average residential price. It covers filtration-pump electricity only, not a pool heater, cleaner, lighting, or chemicals.

Product-test context: U.S. EIA April 2026 residential electricity-price table.

Electricity-rate context: U.S. EIA April 2026 residential electricity-price table.