WattCostCalc

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

Running a 4,000-watt appliance for 2 hours uses 8 kWh and costs $1.36 at $0.17/kWh in Illinois. Do that every day and it adds up to $40.80 a month.

$1.36 for 2 hoursat $0.17/kWh

Calculate your own cost

Hours per day:
$1.36per day
Per hour
$0.684 kWh
Per day
$1.368 kWh
Per week
$9.5256 kWh
Per month (30 days)
$40.80240 kWh
Per year
$496.402,920 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 $0.17/kWh, it costs $0.68 per hour. The maths: 4,000 W ÷ 1,000 = 4 kWh per hour, × $0.17 = $0.68.

How much does it cost per month?

Used 2 hours a day for 30 days, it costs about $40.80 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 Illinois

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour4 kWh$0.68$20.40$248.20
2 hours8 kWh$1.36$40.80$496.40
3 hours12 kWh$2.04$61.20$744.60
4 hours16 kWh$2.72$81.60$992.80
5 hours20 kWh$3.40$102.00$1,241.00
6 hours24 kWh$4.08$122.40$1,489.20
7 hours28 kWh$4.76$142.80$1,737.40
8 hours32 kWh$5.44$163.20$1,985.60
9 hours36 kWh$6.12$183.60$2,233.80
10 hours40 kWh$6.80$204.00$2,482.00
11 hours44 kWh$7.48$224.40$2,730.20
12 hours48 kWh$8.16$244.80$2,978.40
13 hours52 kWh$8.84$265.20$3,226.60
14 hours56 kWh$9.52$285.60$3,474.80
15 hours60 kWh$10.20$306.00$3,723.00
16 hours64 kWh$10.88$326.40$3,971.20
17 hours68 kWh$11.56$346.80$4,219.40
18 hours72 kWh$12.24$367.20$4,467.60
19 hours76 kWh$12.92$387.60$4,715.80
20 hours80 kWh$13.60$408.00$4,964.00
21 hours84 kWh$14.28$428.40$5,212.20
22 hours88 kWh$14.96$448.80$5,460.40
23 hours92 kWh$15.64$469.20$5,708.60
24 hours96 kWh$16.32$489.60$5,956.80

How we worked it out

  1. Energy per hour: 4,000 W ÷ 1,000 = 4 kWh
  2. Cost per hour: 4 kWh × $0.17 = $0.68
  3. Cost per day: × 2 hours = $1.36
  4. Month and year: × 30 days = $40.80, × 365 days = $496.40

Illinois electricity prices

Illinois pays about $0.17 per kWh, which is 3% 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 Illinois. 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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