WattCostCalc

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

A 1,500-watt appliance uses 1.5 kWh per hour and costs $0.188 per hour at $0.125/kWh in Montana. Over 4 hours a day that is $0.75 per day, $22.50 per month and $273.75 per year.

$0.188 per hourat $0.125/kWh

Calculate your own cost

Hours per day:
$0.75per day
Per hour
$0.1881.5 kWh
Per day
$0.756 kWh
Per week
$5.2542 kWh
Per month (30 days)
$22.50180 kWh
Per year
$273.752,190 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 $0.125/kWh, it costs $0.188 per hour. The maths: 1,500 W ÷ 1,000 = 1.5 kWh per hour, × $0.125 = $0.188.

How much does it cost per month?

Used 4 hours a day for 30 days, it costs about $22.50 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 Montana

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour1.5 kWh$0.188$5.63$68.44
2 hours3 kWh$0.375$11.25$136.88
3 hours4.5 kWh$0.563$16.88$205.31
4 hours6 kWh$0.75$22.50$273.75
5 hours7.5 kWh$0.938$28.13$342.19
6 hours9 kWh$1.13$33.75$410.63
7 hours10.5 kWh$1.31$39.38$479.06
8 hours12 kWh$1.50$45.00$547.50
9 hours13.5 kWh$1.69$50.63$615.94
10 hours15 kWh$1.88$56.25$684.38
11 hours16.5 kWh$2.06$61.88$752.81
12 hours18 kWh$2.25$67.50$821.25
13 hours19.5 kWh$2.44$73.13$889.69
14 hours21 kWh$2.63$78.75$958.13
15 hours22.5 kWh$2.81$84.38$1,026.56
16 hours24 kWh$3.00$90.00$1,095.00
17 hours25.5 kWh$3.19$95.63$1,163.44
18 hours27 kWh$3.38$101.25$1,231.88
19 hours28.5 kWh$3.56$106.88$1,300.31
20 hours30 kWh$3.75$112.50$1,368.75
21 hours31.5 kWh$3.94$118.13$1,437.19
22 hours33 kWh$4.13$123.75$1,505.63
23 hours34.5 kWh$4.31$129.38$1,574.06
24 hours36 kWh$4.50$135.00$1,642.50

How we worked it out

  1. Energy per hour: 1,500 W ÷ 1,000 = 1.5 kWh
  2. Cost per hour: 1.5 kWh × $0.125 = $0.188
  3. Cost per day: × 4 hours = $0.75
  4. Month and year: × 30 days = $22.50, × 365 days = $273.75

Montana electricity prices

Montana pays about $0.125 per kWh, which is 29% 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 Montana. 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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Cost for different run times

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