Well Pump Running Cost Calculator
Estimate well-pump electricity use and operating cost from motor size, load factor, daily runtime, flow rate and electricity price.
Default project preview
$10.74 per month
Estimated input power
0.8 kW
Monthly energy
59.7 kWh
Monthly water volume
45,000 gal
Cost per 1,000 volume
$0.24
Calculator
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Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Estimated input kW = motor shaft power × load factor ÷ efficiency. Monthly energy = input kW × hours per day × days. Cost = kWh × electricity rate.
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FAQ
Well Pump Running Cost Calculator questions
Why is electrical input higher than shaft power?+
Motors and drives are not perfectly efficient, so electrical input can exceed the mechanical output rating.
Does pump cycling affect cost?+
Yes. Frequent starts, pressure losses and short cycling can change actual runtime and efficiency.
Can measured wattage be used?+
The calculator does not have a direct measured-kW field, but you can choose metric mode and enter the measured input kW with load and efficiency both set to 100%.