WattCostCalc

Cost to Run a 4,000-watt appliance for 2 hours in Oregon

Running a 4,000-watt appliance for 2 hours uses 8 kWh and costs $1.08 at $0.135/kWh in Oregon. Do that every day and it adds up to $32.40 a month.

$1.08 for 2 hoursat $0.135/kWh

Calculate your own cost

Hours per day:
$1.08per day
Per hour
$0.544 kWh
Per day
$1.088 kWh
Per week
$7.5656 kWh
Per month (30 days)
$32.40240 kWh
Per year
$394.202,920 kWh

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

People also ask

How much does a 4,000-watt appliance cost per hour?

At $0.135/kWh, it costs $0.54 per hour. The maths: 4,000 W ÷ 1,000 = 4 kWh per hour, × $0.135 = $0.54.

How much does it cost per month?

Used 2 hours a day for 30 days, it costs about $32.40 per month and uses 240 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

8 kWh per day, 240 kWh per month and 2,920 kWh per year at 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?

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 $24.00 and at 30¢ it is $72.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use in Oregon

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour4 kWh$0.54$16.20$197.10
2 hours8 kWh$1.08$32.40$394.20
3 hours12 kWh$1.62$48.60$591.30
4 hours16 kWh$2.16$64.80$788.40
5 hours20 kWh$2.70$81.00$985.50
6 hours24 kWh$3.24$97.20$1,182.60
7 hours28 kWh$3.78$113.40$1,379.70
8 hours32 kWh$4.32$129.60$1,576.80
9 hours36 kWh$4.86$145.80$1,773.90
10 hours40 kWh$5.40$162.00$1,971.00
11 hours44 kWh$5.94$178.20$2,168.10
12 hours48 kWh$6.48$194.40$2,365.20
13 hours52 kWh$7.02$210.60$2,562.30
14 hours56 kWh$7.56$226.80$2,759.40
15 hours60 kWh$8.10$243.00$2,956.50
16 hours64 kWh$8.64$259.20$3,153.60
17 hours68 kWh$9.18$275.40$3,350.70
18 hours72 kWh$9.72$291.60$3,547.80
19 hours76 kWh$10.26$307.80$3,744.90
20 hours80 kWh$10.80$324.00$3,942.00
21 hours84 kWh$11.34$340.20$4,139.10
22 hours88 kWh$11.88$356.40$4,336.20
23 hours92 kWh$12.42$372.60$4,533.30
24 hours96 kWh$12.96$388.80$4,730.40

How we worked it out

  1. Energy per hour: 4,000 W ÷ 1,000 = 4 kWh
  2. Cost per hour: 4 kWh × $0.135 = $0.54
  3. Cost per day: × 2 hours = $1.08
  4. Month and year: × 30 days = $32.40, × 365 days = $394.20

Oregon electricity prices

Oregon pays about $0.135 per kWh, which is 23% lower than the US average of $0.175. The same appliance would cost $42.00 a month at the national average.

What it costs in different places

Same 4,000-watt appliance, 2 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$42.00
California$0.32$76.80
Texas$0.155$37.20
New York$0.25$60.00
Florida$0.155$37.20
Illinois$0.17$40.80
Pennsylvania$0.18$43.20
Ohio$0.17$40.80
Washington$0.115$27.60

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 Oregon. 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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