How Many kWh Does a Hot Tub / Spa Use?
Hot Tub / Spa energy cost calculator — see your exact daily, monthly, and yearly electricity cost.
US national average. Edit for your local rate.
Daily Energy Use
12.00
kWh / day
Monthly Cost
$67.79
Yearly Cost
$824.75
Hot Tub / Spa — Cost Breakdown
| Period | kWh Used | Cost ($) |
|---|---|---|
| Per Hour | 3.0000 | $0.5649 |
| Per Day | 12.00 | $2.26 |
| Per Month (30 days) | 360.00 | $67.79 |
| Per Year (365 days) | 4380.00 | $824.75 |
Running a hot tub for 4 hours uses about the same energy as running an electric oven for nearly 5 hours.
3 Ways to Cut Your Hot Tub / Spa Energy Bill
- 🌱
Keep a high-quality insulated cover on at all times when not in use — most heat loss is from the water surface.
- 💡
Lower the set temperature by 2–3°F when not using it for extended periods rather than turning it off and reheating completely.
- ⚡
Ensure the cabinet panels are intact and insulation isn't waterlogged, as wet insulation loses its R-value.
The heater element draws stable, high wattage, but the jet pump motor surges to about 5,000–7,000W at startup.