Hot Tub Operating Cost Calculator
Monthly electricity cost to run a hot tub.
Enter your values
heater + pump average, check spec sheet
ⓘ Live results
Results
- Estimated monthly cost
- $27.00
- Monthly energy use
- 180 kWh
- Estimated annual cost
- $324.00
Quick answer
Monthly cost is the hot tub's average power draw times hours running per day times days, times your electricity rate.
cost = (avg watts / 1000) x hours per day x days x price per kWh
How to use the Hot Tub Operating Cost Calculator
- 1Check your hot tub's average power draw (watts) from the manual, often 1,000-2,000W average with a well-insulated cover.
- 2Estimate hours per day the heater and pump actively run.
- 3Multiply by your electricity rate and days per month to see the estimated running cost.
Inputs explained
- Average power draw(W)
- heater + pump average, check spec sheet
Worked example
Using the values the calculator loads with:
Inputs
- Average power draw1500 W
- Hours actively heating/running per day4
- Electricity rate0.15 $/kWh
- Days per month30
Results
- Estimated monthly cost$27.00
- Monthly energy use180 kWh
- Estimated annual cost$324.00
Frequently asked questions
How much does a hot tub typically cost to run monthly?
Most residential hot tubs cost $20-50/month to run in mild climates, more in cold climates or if used frequently.
Does a cover reduce cost much?
Yes, a good insulated cover can cut heating costs by 50% or more by reducing heat loss.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.