WattCostCalc

How Much Does a 1,500-watt appliance Cost to Run in Washington?

A 1,500-watt appliance uses 1.5 kWh per hour and costs $0.173 per hour at $0.115/kWh in Washington. Over 4 hours a day that is $0.69 per day, $20.70 per month and $251.85 per year.

$0.173 per hourat $0.115/kWh

Calculate your own cost

Hours per day:
$0.69per day
Per hour
$0.1731.5 kWh
Per day
$0.696 kWh
Per week
$4.8342 kWh
Per month (30 days)
$20.70180 kWh
Per year
$251.852,190 kWh

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

People also ask

How much does a 1,500-watt appliance cost per hour?

At $0.115/kWh, it costs $0.173 per hour. The maths: 1,500 W ÷ 1,000 = 1.5 kWh per hour, × $0.115 = $0.173.

How much does it cost per month?

Used 4 hours a day for 30 days, it costs about $20.70 per month and uses 180 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

6 kWh per day, 180 kWh per month and 2,190 kWh per year at 4 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 it for fewer hours, switch to a lower-wattage model, and check whether your utility offers cheaper off-peak rates. Enter your own rate above to see the effect.

Does my electricity rate change the answer?

Yes, a lot. At 10¢ per kWh the monthly cost is $18.00 and at 30¢ it is $54.00. 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 dayEnergy per dayCost per dayCost per monthCost per year
1 hour1.5 kWh$0.173$5.18$62.96
2 hours3 kWh$0.345$10.35$125.93
3 hours4.5 kWh$0.518$15.53$188.89
4 hours6 kWh$0.69$20.70$251.85
5 hours7.5 kWh$0.863$25.88$314.81
6 hours9 kWh$1.04$31.05$377.78
7 hours10.5 kWh$1.21$36.23$440.74
8 hours12 kWh$1.38$41.40$503.70
9 hours13.5 kWh$1.55$46.58$566.66
10 hours15 kWh$1.73$51.75$629.63
11 hours16.5 kWh$1.90$56.93$692.59
12 hours18 kWh$2.07$62.10$755.55
13 hours19.5 kWh$2.24$67.28$818.51
14 hours21 kWh$2.42$72.45$881.48
15 hours22.5 kWh$2.59$77.63$944.44
16 hours24 kWh$2.76$82.80$1,007.40
17 hours25.5 kWh$2.93$87.98$1,070.36
18 hours27 kWh$3.11$93.15$1,133.33
19 hours28.5 kWh$3.28$98.33$1,196.29
20 hours30 kWh$3.45$103.50$1,259.25
21 hours31.5 kWh$3.62$108.68$1,322.21
22 hours33 kWh$3.80$113.85$1,385.18
23 hours34.5 kWh$3.97$119.03$1,448.14
24 hours36 kWh$4.14$124.20$1,511.10

How we worked it out

  1. Energy per hour: 1,500 W ÷ 1,000 = 1.5 kWh
  2. Cost per hour: 1.5 kWh × $0.115 = $0.173
  3. Cost per day: × 4 hours = $0.69
  4. Month and year: × 30 days = $20.70, × 365 days = $251.85

Washington electricity prices

Washington pays about $0.115 per kWh, which is 34% lower than the US average of $0.175. The same appliance would cost $31.50 a month at the national average.

What it costs in different places

Same 1,500-watt appliance, 4 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$31.50
California$0.32$57.60
Texas$0.155$27.90
New York$0.25$45.00
Florida$0.155$27.90
Illinois$0.17$30.60
Pennsylvania$0.18$32.40
Ohio$0.17$30.60
Washington$0.115$20.70

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.

Read the full calculation methodology

Keep exploring

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Appliances that use 1,500 watts

Cost for different run times

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