How Much Does It Cost to Run a Heated Bidet Seat?
The seat and water heater idle around the clock — small watts, but they never stop, like a very comfortable nightlight. At the US-average rate of 16.5¢/kWh, running a heated bidet seat costs about $6.02/month ($72.18/year) at typical use. Adjust the watts, hours, and your rate below for your exact number.
Cost to run a heated bidet seat
$72/yr
- Per day
- $0.20
- Per month
- $6.02
- Energy per year
- 438 kWh
Cost = power (kW) × hours × days × your rate. Defaults are typical values — enter your appliance's actual watts (often on a label) and your real rate for a precise figure.
How much electricity does a heated bidet seat use?
At 50 W for 24 hours a day, a heated bidet seat uses about 1.2 kWh per day — roughly 37 kWh per month and 438 kWh per year. That's about 4% of the 863 kWh the average US home uses in a month. Energy use is the same everywhere — only the price per kWh changes your bill.
Wondering about the circuit instead? See how many amps a heated bidet seat draws.
Cost to run a heated bidet seat by electricity rate
Same 50 W appliance, 24 h/day — the bill changes with where you live.
| Scenario | Rate | Per month | Per year |
|---|---|---|---|
| Cheapest states (North Dakota) | 11.5¢ | $4.20 | $50.41 |
| US average | 16.5¢ | $6.02 | $72.18 |
| Most expensive (Hawaii) | 42.9¢ | $15.64 | $187.73 |
Find your state's rate on the electricity rates by state page, or see the appliance wattage chart for more devices.
Measure what a heated bidet seat really costs you
The estimate above uses typical wattage and hours. A plug-in energy meter logs the kilowatt-hours this appliance actually uses — leave it in for a week, multiply by your rate, and the estimate becomes a measurement. A whole-home monitor does the same for every circuit at once, but its sensors install inside the panel.
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Plug-in power meter
P3 International Kill A Watt P4400
Best for: Measuring what one plug-in appliance really uses
Whole-home energy monitor
Emporia Vue 3 Home Energy Monitor (16 circuit sensors)
Best for: Measuring hardwired and 240 V loads, or every circuit at once
Frequently asked questions
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