How Much Electricity Does An Electric Toothbrush Use?
An electric toothbrush typically uses about 2 watts while running. At 0.1 hours a day that is 0 kWh per day, 0.01 kWh per month and 0.07 kWh per year.
Calculate your own cost
- Per hour
- $0.00040 kWh
- Per day
- $0.00000 kWh
- Per week
- $0.00020 kWh
- Per month (30 days)
- $0.0010.01 kWh
- Per year
- $0.0130.07 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 2-watt electric toothbrush cost per hour?
At $0.175/kWh, it costs $0.0004 per hour. The maths: 2 W ÷ 1,000 = 0 kWh per hour, × $0.175 = $0.0004.
How much does it cost per month?
Used 0.1 hours a day for 30 days, it costs about $0.001 per month and uses 0.01 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0 kWh per day, 0.01 kWh per month and 0.07 kWh per year at 0.1 hours a day. A kWh is one kilowatt (1,000 W) used for one hour. It is the unit on your electricity bill.
How can I lower the cost?
Use the manufacturer’s charger and consider standby draw only if you want a detailed annual estimate. Check your bill for the exact rate and enter it above.
Does my electricity rate change the answer?
Yes, a lot. At 10¢ per kWh the monthly cost is $0.0006 and at 30¢ it is $0.002. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0 kWh | $0.0004 | $0.011 | $0.128 |
| 2 hours | 0 kWh | $0.0007 | $0.021 | $0.256 |
| 3 hours | 0.01 kWh | $0.001 | $0.032 | $0.383 |
| 4 hours | 0.01 kWh | $0.001 | $0.042 | $0.511 |
| 5 hours | 0.01 kWh | $0.002 | $0.053 | $0.639 |
| 6 hours | 0.01 kWh | $0.002 | $0.063 | $0.767 |
| 7 hours | 0.01 kWh | $0.002 | $0.074 | $0.894 |
| 8 hours | 0.02 kWh | $0.003 | $0.084 | $1.02 |
| 9 hours | 0.02 kWh | $0.003 | $0.095 | $1.15 |
| 10 hours | 0.02 kWh | $0.004 | $0.105 | $1.28 |
| 11 hours | 0.02 kWh | $0.004 | $0.116 | $1.41 |
| 12 hours | 0.02 kWh | $0.004 | $0.126 | $1.53 |
| 13 hours | 0.03 kWh | $0.005 | $0.137 | $1.66 |
| 14 hours | 0.03 kWh | $0.005 | $0.147 | $1.79 |
| 15 hours | 0.03 kWh | $0.005 | $0.158 | $1.92 |
| 16 hours | 0.03 kWh | $0.006 | $0.168 | $2.04 |
| 17 hours | 0.03 kWh | $0.006 | $0.179 | $2.17 |
| 18 hours | 0.04 kWh | $0.006 | $0.189 | $2.30 |
| 19 hours | 0.04 kWh | $0.007 | $0.20 | $2.43 |
| 20 hours | 0.04 kWh | $0.007 | $0.21 | $2.56 |
| 21 hours | 0.04 kWh | $0.007 | $0.221 | $2.68 |
| 22 hours | 0.04 kWh | $0.008 | $0.231 | $2.81 |
| 23 hours | 0.05 kWh | $0.008 | $0.242 | $2.94 |
| 24 hours | 0.05 kWh | $0.008 | $0.252 | $3.07 |
How we worked it out
- Energy per hour: 2 W ÷ 1,000 = 0 kWh
- Cost per hour: 0 kWh × $0.175 = $0.0004
- Cost per day: × 0.1 hours = $0.0000
- Month and year: × 30 days = $0.001, × 365 days = $0.013
About electric toothbrush running costs
An electric toothbrush uses a small motor briefly, while the charging stand may draw a little power between uses.
Typical sizes: 1 W, 2 W, 5 W, 10 W.
How to spend less: Use the manufacturer’s charger and consider standby draw only if you want a detailed annual estimate.
What this estimate assumes
- The appliance draws its full stated wattage the whole time it is on. Real units with a thermostat cycle off and cost less.
- Wattage is the typical label value, not a measured value. Check the label on your own appliance.
- The rate is an approximate residential average. Your bill may include fixed fees, tiers or time-of-use pricing. Edit the rate above.
- A month is 30 days and a year is 365 days.