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How Much Does It Cost to Run a Electric Toothbrush Charger in California? (2026)
An electric toothbrush charger draws about a watt whether or not the brush is on it. Over a year that is under 10 kWh, one of the smallest loads in the house.
A typical electric toothbrush charger (1 W) costs $0.000 per hour, or about $0.25 per month at 24 hours a day in California. Cheap to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (0 W) | $0.000 | $0.004 | $0.13 | $1.53 |
| Typical (1 W) | $0.000 | $0.008 | $0.25 | $3.07 |
| High (2 W) | $0.001 | $0.017 | $0.50 | $6.13 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 24 h/day ≈ 9 kWh per year.
In California, with electricity at $0.35 per kWh (source: EIA Table 5.6.A, 2026-06), a typical electric toothbrush charger costs $0.000 per hour and about $3.07 per year at 24 hours a day. That is about 94% more than the US national average of $0.13 per month, because electricity in California costs $0.35 per kWh against $0.18 nationally. Each $1.00 of electricity buys roughly 2,857.1 hours of use.
How to lower the cost of running a electric toothbrush charger
- Unplug the charger when the brush is fully charged if you want to eliminate the last watt.
- Charge every few days rather than leaving it docked constantly to extend battery life.
- Nothing else. This is not where savings are.
In standby it draws about 0.5 W, which adds roughly 4 kWh ($1.53) per year if it is never unplugged.
Frequently asked questions
How much does it cost to charge an electric toothbrush?
Under 10 kWh a year, a dollar or two.
Does the charger use power when the brush is not on it?
Yes, about half a watt on inductive chargers.
Should I unplug my toothbrush charger?
Only for peace of mind. The saving is negligible.
Cost by region
- United States (average)
- California
- Texas
- New York
- Florida
- Canada (average)
- United Kingdom
- Germany
- France
- Australia
- India