Cost to Run a 5-watt electric shaver for 20 hours in Washington
Running a 5-watt electric shaver for 20 hours uses 0.1 kWh and costs $0.012 at $0.115/kWh in Washington. Do that every day and it adds up to $0.345 a month.
Calculate your own cost
- Per hour
- $0.00060.01 kWh
- Per day
- $0.0120.1 kWh
- Per week
- $0.0810.7 kWh
- Per month (30 days)
- $0.3453 kWh
- Per year
- $4.2036.5 kWh
Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.
People also ask
How much does a 5-watt electric shaver cost per hour?
At $0.115/kWh, it costs $0.0006 per hour. The maths: 5 W ÷ 1,000 = 0.01 kWh per hour, × $0.115 = $0.0006.
How much does it cost per month?
Used 20 hours a day for 30 days, it costs about $0.345 per month and uses 3 kWh. Change the hours in the calculator above to match how you use it.
How many kWh does it use?
0.1 kWh per day, 3 kWh per month and 36.5 kWh per year at 20 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?
Charge as needed and use the model’s rated input for a rough 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 $0.30 and at 30¢ it is $0.90. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.
Cost by hours of use in Washington
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.01 kWh | $0.0006 | $0.017 | $0.21 |
| 2 hours | 0.01 kWh | $0.001 | $0.035 | $0.42 |
| 3 hours | 0.02 kWh | $0.002 | $0.052 | $0.63 |
| 4 hours | 0.02 kWh | $0.002 | $0.069 | $0.84 |
| 5 hours | 0.03 kWh | $0.003 | $0.086 | $1.05 |
| 6 hours | 0.03 kWh | $0.003 | $0.104 | $1.26 |
| 7 hours | 0.04 kWh | $0.004 | $0.121 | $1.47 |
| 8 hours | 0.04 kWh | $0.005 | $0.138 | $1.68 |
| 9 hours | 0.05 kWh | $0.005 | $0.155 | $1.89 |
| 10 hours | 0.05 kWh | $0.006 | $0.173 | $2.10 |
| 11 hours | 0.06 kWh | $0.006 | $0.19 | $2.31 |
| 12 hours | 0.06 kWh | $0.007 | $0.207 | $2.52 |
| 13 hours | 0.07 kWh | $0.007 | $0.224 | $2.73 |
| 14 hours | 0.07 kWh | $0.008 | $0.242 | $2.94 |
| 15 hours | 0.08 kWh | $0.009 | $0.259 | $3.15 |
| 16 hours | 0.08 kWh | $0.009 | $0.276 | $3.36 |
| 17 hours | 0.09 kWh | $0.01 | $0.293 | $3.57 |
| 18 hours | 0.09 kWh | $0.01 | $0.311 | $3.78 |
| 19 hours | 0.1 kWh | $0.011 | $0.328 | $3.99 |
| 20 hours | 0.1 kWh | $0.012 | $0.345 | $4.20 |
| 21 hours | 0.11 kWh | $0.012 | $0.362 | $4.41 |
| 22 hours | 0.11 kWh | $0.013 | $0.38 | $4.62 |
| 23 hours | 0.12 kWh | $0.013 | $0.397 | $4.83 |
| 24 hours | 0.12 kWh | $0.014 | $0.414 | $5.04 |
How we worked it out
- Energy per hour: 5 W ÷ 1,000 = 0.01 kWh
- Cost per hour: 0.01 kWh × $0.115 = $0.0006
- Cost per day: × 20 hours = $0.012
- Month and year: × 30 days = $0.345, × 365 days = $4.20
Washington electricity prices
Washington pays about $0.115 per kWh, which is 34% lower than the US average of $0.175. The same electric shaver would cost $0.525 a month at the national average.
What it costs in different places
Same 5-watt electric shaver, 20 hours a day. Only the local electricity rate changes.
| Place | Rate per kWh | Cost per month |
|---|---|---|
| United States | $0.175 | $0.525 |
| California | $0.32 | $0.96 |
| Texas | $0.155 | $0.465 |
| New York | $0.25 | $0.75 |
| Florida | $0.155 | $0.465 |
| Illinois | $0.17 | $0.51 |
| Pennsylvania | $0.18 | $0.54 |
| Ohio | $0.17 | $0.51 |
| Washington | $0.115 | $0.345 |
About electric shaver running costs
Electric shavers use modest power for short periods or while charging. Battery capacity can help estimate energy per full charge.
Typical sizes: 5 W, 10 W, 20 W, 30 W.
How to spend less: Charge as needed and use the model’s rated input for a rough 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 in Washington. 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.