WattCostCalc

How Much Does a 500-watt appliance Cost to Run in Minnesota?

A 500-watt appliance uses 0.5 kWh per hour and costs $0.078 per hour at $0.155/kWh in Minnesota. Over 4 hours a day that is $0.31 per day, $9.30 per month and $113.15 per year.

$0.078 per hourat $0.155/kWh

Calculate your own cost

Hours per day:
$0.31per day
Per hour
$0.0780.5 kWh
Per day
$0.312 kWh
Per week
$2.1714 kWh
Per month (30 days)
$9.3060 kWh
Per year
$113.15730 kWh

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

People also ask

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

At $0.155/kWh, it costs $0.078 per hour. The maths: 500 W ÷ 1,000 = 0.5 kWh per hour, × $0.155 = $0.078.

How much does it cost per month?

Used 4 hours a day for 30 days, it costs about $9.30 per month and uses 60 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

2 kWh per day, 60 kWh per month and 730 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 $6.00 and at 30¢ it is $18.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use in Minnesota

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.5 kWh$0.078$2.33$28.29
2 hours1 kWh$0.155$4.65$56.58
3 hours1.5 kWh$0.233$6.98$84.86
4 hours2 kWh$0.31$9.30$113.15
5 hours2.5 kWh$0.388$11.63$141.44
6 hours3 kWh$0.465$13.95$169.73
7 hours3.5 kWh$0.543$16.28$198.01
8 hours4 kWh$0.62$18.60$226.30
9 hours4.5 kWh$0.698$20.93$254.59
10 hours5 kWh$0.775$23.25$282.88
11 hours5.5 kWh$0.853$25.58$311.16
12 hours6 kWh$0.93$27.90$339.45
13 hours6.5 kWh$1.01$30.23$367.74
14 hours7 kWh$1.09$32.55$396.03
15 hours7.5 kWh$1.16$34.88$424.31
16 hours8 kWh$1.24$37.20$452.60
17 hours8.5 kWh$1.32$39.53$480.89
18 hours9 kWh$1.40$41.85$509.18
19 hours9.5 kWh$1.47$44.18$537.46
20 hours10 kWh$1.55$46.50$565.75
21 hours10.5 kWh$1.63$48.83$594.04
22 hours11 kWh$1.71$51.15$622.33
23 hours11.5 kWh$1.78$53.48$650.61
24 hours12 kWh$1.86$55.80$678.90

How we worked it out

  1. Energy per hour: 500 W ÷ 1,000 = 0.5 kWh
  2. Cost per hour: 0.5 kWh × $0.155 = $0.078
  3. Cost per day: × 4 hours = $0.31
  4. Month and year: × 30 days = $9.30, × 365 days = $113.15

Minnesota electricity prices

Minnesota pays about $0.155 per kWh, which is 11% lower than the US average of $0.175. The same appliance would cost $10.50 a month at the national average.

What it costs in different places

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

PlaceRate per kWhCost per month
United States$0.175$10.50
California$0.32$19.20
Texas$0.155$9.30
New York$0.25$15.00
Florida$0.155$9.30
Illinois$0.17$10.20
Pennsylvania$0.18$10.80
Ohio$0.17$10.20
Washington$0.115$6.90

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 Minnesota. 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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