Calculate your cost
Start with a representative input, then edit all three numbers.
This setup uses about 360 kWh in a 30-day month.
Please enter valid values within the ranges shown.
| Schedule | Hours/day | Cost/month |
|---|---|---|
| Half runtime | 4 | $33.89 |
| Starting point | 8 | $67.79 |
| Longer runtime | 12 | $101.68 |
Same 1,500-watt input and 18.83¢/kWh rate; only runtime changes.
The quick formula
1.5 kW × 8 hours × $0.1883 = $2.26 per day
Convert watts to kilowatts, multiply by the active hours used each day, then multiply by the electricity price in dollars per kWh. Multiply the daily result by 30 for the monthly estimate shown above.
How to read this estimate
A single-speed pool pump can become a large seasonal load because it runs for hours at a time. Variable-speed models change the calculation considerably because reducing pump speed can reduce power draw as well as water flow.
The starting values keep this page useful before you have a label or meter reading. They do not describe every model, climate, operating mode, or household.
What changes the cost?
- 01
Motor size, speed setting, and pump efficiency
- 02
Pool volume, plumbing resistance, and filtration needs
- 03
Daily schedule and length of the swimming season
Ways to spend less
- Test the shortest schedule that keeps the water properly filtered.
- Run during off-peak hours if the utility uses time-of-use pricing.
- Use lower speeds for routine circulation on a variable-speed pump.