WattCostCalc

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

A 1,500-watt appliance uses 1.5 kWh per hour and costs $0.435 per hour at $0.29/kWh in Rhode Island. Over 4 hours a day that is $1.74 per day, $52.20 per month and $635.10 per year.

$0.435 per hourat $0.29/kWh

Calculate your own cost

Hours per day:
$1.74per day
Per hour
$0.4351.5 kWh
Per day
$1.746 kWh
Per week
$12.1842 kWh
Per month (30 days)
$52.20180 kWh
Per year
$635.102,190 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 $0.29/kWh, it costs $0.435 per hour. The maths: 1,500 W ÷ 1,000 = 1.5 kWh per hour, × $0.29 = $0.435.

How much does it cost per month?

Used 4 hours a day for 30 days, it costs about $52.20 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 Rhode Island

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour1.5 kWh$0.435$13.05$158.78
2 hours3 kWh$0.87$26.10$317.55
3 hours4.5 kWh$1.31$39.15$476.33
4 hours6 kWh$1.74$52.20$635.10
5 hours7.5 kWh$2.18$65.25$793.88
6 hours9 kWh$2.61$78.30$952.65
7 hours10.5 kWh$3.05$91.35$1,111.43
8 hours12 kWh$3.48$104.40$1,270.20
9 hours13.5 kWh$3.92$117.45$1,428.98
10 hours15 kWh$4.35$130.50$1,587.75
11 hours16.5 kWh$4.79$143.55$1,746.53
12 hours18 kWh$5.22$156.60$1,905.30
13 hours19.5 kWh$5.66$169.65$2,064.08
14 hours21 kWh$6.09$182.70$2,222.85
15 hours22.5 kWh$6.53$195.75$2,381.63
16 hours24 kWh$6.96$208.80$2,540.40
17 hours25.5 kWh$7.40$221.85$2,699.18
18 hours27 kWh$7.83$234.90$2,857.95
19 hours28.5 kWh$8.27$247.95$3,016.73
20 hours30 kWh$8.70$261.00$3,175.50
21 hours31.5 kWh$9.14$274.05$3,334.28
22 hours33 kWh$9.57$287.10$3,493.05
23 hours34.5 kWh$10.01$300.15$3,651.83
24 hours36 kWh$10.44$313.20$3,810.60

How we worked it out

  1. Energy per hour: 1,500 W ÷ 1,000 = 1.5 kWh
  2. Cost per hour: 1.5 kWh × $0.29 = $0.435
  3. Cost per day: × 4 hours = $1.74
  4. Month and year: × 30 days = $52.20, × 365 days = $635.10

Rhode Island electricity prices

Rhode Island pays about $0.29 per kWh, which is 66% higher 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 Rhode Island. 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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