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How much does it cost to run an electric toothbrush? ($0.02/mo)
Running an electric toothbrush costs about $0.02 / month
($0.00/day at 1 h/day, $0.17/kWh).
($0.00/day at 1 h/day, $0.17/kWh).
Running cost calculator
Per hour—
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Energy/mo—
An electric toothbrush runs on a tiny rechargeable battery, so its charging dock uses a negligible amount of power.
Cost at different electricity rates
| Electricity rate | Per day | Per month | Per year |
|---|---|---|---|
| $0.10/kWh | $0.00 | $0.01 | $0.11 |
| $0.15/kWh | $0.00 | $0.01 | $0.16 |
| $0.20/kWh | $0.00 | $0.02 | $0.22 |
| $0.25/kWh | $0.00 | $0.02 | $0.27 |
| $0.30/kWh | $0.00 | $0.03 | $0.33 |
| $0.40/kWh | $0.00 | $0.04 | $0.44 |
Cost over time
| Per hour of use | $0.00 |
| Per day (1 h) | $0.00 |
| Per month | $0.02 |
| Per year | $0.19 |
How to spend less running an electric toothbrush
- Cut the hours: An electric toothbrush at 1 h/day runs about $0.02/month — trimming one hour saves roughly $0.02/month.
- Lower the setting: running an electric toothbrush on a lower or eco setting drops the wattage directly.
- Upgrade efficiency: a newer electric toothbrush near 1 W uses far less than an old 5 W one.
- Kill standby: a smart plug or timer removes the ~1 W it draws even when off.
Want the raw figure? See how many watts an electric toothbrush uses.
FAQ
How many watts does an electric toothbrush use?
Only 1-5 watts while charging on its dock.
Should I leave it on the charger?
It is fine - the draw is trivial, though unplugging fully saves a tiny bit.
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