WattCostCalc

How Much Does a 20-watt electric shaver Cost to Run in Florida?

A 20-watt electric shaver uses 0.02 kWh per hour and costs $0.003 per hour at $0.155/kWh in Florida. Used 0.2 hours a day, that is $0.0006 per day, $0.019 per month and $0.226 per year.

$0.003 per hourat $0.155/kWh

Calculate your own cost

Hours per day:
$0.0006per day
Per hour
$0.0030.02 kWh
Per day
$0.00060 kWh
Per week
$0.0040.03 kWh
Per month (30 days)
$0.0190.12 kWh
Per year
$0.2261.46 kWh

Formula: watts ÷ 1,000 × hours × rate. Edit any box and every number updates instantly.

People also ask

How much does a 20-watt electric shaver cost per hour?

At $0.155/kWh, it costs $0.003 per hour. The maths: 20 W ÷ 1,000 = 0.02 kWh per hour, × $0.155 = $0.003.

How much does it cost per month?

Used 0.2 hours a day for 30 days, it costs about $0.019 per month and uses 0.12 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

0 kWh per day, 0.12 kWh per month and 1.46 kWh per year at 0.2 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 $0.012 and at 30¢ it is $0.036. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use in Florida

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.02 kWh$0.003$0.093$1.13
2 hours0.04 kWh$0.006$0.186$2.26
3 hours0.06 kWh$0.009$0.279$3.39
4 hours0.08 kWh$0.012$0.372$4.53
5 hours0.1 kWh$0.016$0.465$5.66
6 hours0.12 kWh$0.019$0.558$6.79
7 hours0.14 kWh$0.022$0.651$7.92
8 hours0.16 kWh$0.025$0.744$9.05
9 hours0.18 kWh$0.028$0.837$10.18
10 hours0.2 kWh$0.031$0.93$11.32
11 hours0.22 kWh$0.034$1.02$12.45
12 hours0.24 kWh$0.037$1.12$13.58
13 hours0.26 kWh$0.04$1.21$14.71
14 hours0.28 kWh$0.043$1.30$15.84
15 hours0.3 kWh$0.047$1.40$16.97
16 hours0.32 kWh$0.05$1.49$18.10
17 hours0.34 kWh$0.053$1.58$19.24
18 hours0.36 kWh$0.056$1.67$20.37
19 hours0.38 kWh$0.059$1.77$21.50
20 hours0.4 kWh$0.062$1.86$22.63
21 hours0.42 kWh$0.065$1.95$23.76
22 hours0.44 kWh$0.068$2.05$24.89
23 hours0.46 kWh$0.071$2.14$26.02
24 hours0.48 kWh$0.074$2.23$27.16

How we worked it out

  1. Energy per hour: 20 W ÷ 1,000 = 0.02 kWh
  2. Cost per hour: 0.02 kWh × $0.155 = $0.003
  3. Cost per day: × 0.2 hours = $0.0006
  4. Month and year: × 30 days = $0.019, × 365 days = $0.226

Florida electricity prices

Florida pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same electric shaver would cost $0.021 a month at the national average.

What it costs in different places

Same 20-watt electric shaver, 0.2 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$0.021
California$0.32$0.038
Texas$0.155$0.019
New York$0.25$0.03
Florida$0.155$0.019
Illinois$0.17$0.02
Pennsylvania$0.18$0.022
Ohio$0.17$0.02
Washington$0.115$0.014

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 Florida. 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.

Read the full calculation methodology

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