WattCostCalc

Cost to Run a 500-watt baseboard heater for 6 hours in Ohio

Running a 500-watt baseboard heater for 6 hours uses 3 kWh and costs $0.51 at $0.17/kWh in Ohio. Do that every day and it adds up to $15.30 a month.

$0.51 for 6 hoursat $0.17/kWh

Calculate your own cost

Hours per day:
$0.51per day
Per hour
$0.0850.5 kWh
Per day
$0.513 kWh
Per week
$3.5721 kWh
Per month (30 days)
$15.3090 kWh
Per year
$186.151,095 kWh

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

People also ask

How much does a 500-watt baseboard heater cost per hour?

At $0.17/kWh, it costs $0.085 per hour. The maths: 500 W ÷ 1,000 = 0.5 kWh per hour, × $0.17 = $0.085.

How much does it cost per month?

Used 6 hours a day for 30 days, it costs about $15.30 per month and uses 90 kWh. Change the hours in the calculator above to match how you use it.

How many kWh does it use?

3 kWh per day, 90 kWh per month and 1,095 kWh per year at 6 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?

Lower the thermostat by 1 to 2 degrees and close doors to rooms you are not using. Check your bill for the exact rate and enter it above.

Does my electricity rate change the answer?

Yes, a lot. At 10¢ per kWh the monthly cost is $9.00 and at 30¢ it is $27.00. Find your rate on your bill (total cost ÷ kWh used) and type it into the calculator.

Cost by hours of use in Ohio

Used per dayEnergy per dayCost per dayCost per monthCost per year
1 hour0.5 kWh$0.085$2.55$31.03
2 hours1 kWh$0.17$5.10$62.05
3 hours1.5 kWh$0.255$7.65$93.08
4 hours2 kWh$0.34$10.20$124.10
5 hours2.5 kWh$0.425$12.75$155.13
6 hours3 kWh$0.51$15.30$186.15
7 hours3.5 kWh$0.595$17.85$217.18
8 hours4 kWh$0.68$20.40$248.20
9 hours4.5 kWh$0.765$22.95$279.23
10 hours5 kWh$0.85$25.50$310.25
11 hours5.5 kWh$0.935$28.05$341.28
12 hours6 kWh$1.02$30.60$372.30
13 hours6.5 kWh$1.11$33.15$403.33
14 hours7 kWh$1.19$35.70$434.35
15 hours7.5 kWh$1.28$38.25$465.38
16 hours8 kWh$1.36$40.80$496.40
17 hours8.5 kWh$1.45$43.35$527.43
18 hours9 kWh$1.53$45.90$558.45
19 hours9.5 kWh$1.62$48.45$589.48
20 hours10 kWh$1.70$51.00$620.50
21 hours10.5 kWh$1.79$53.55$651.53
22 hours11 kWh$1.87$56.10$682.55
23 hours11.5 kWh$1.96$58.65$713.58
24 hours12 kWh$2.04$61.20$744.60

How we worked it out

  1. Energy per hour: 500 W ÷ 1,000 = 0.5 kWh
  2. Cost per hour: 0.5 kWh × $0.17 = $0.085
  3. Cost per day: × 6 hours = $0.51
  4. Month and year: × 30 days = $15.30, × 365 days = $186.15

Ohio electricity prices

Ohio pays about $0.17 per kWh, which is 3% lower than the US average of $0.175. The same baseboard heater would cost $15.75 a month at the national average.

What it costs in different places

Same 500-watt baseboard heater, 6 hours a day. Only the local electricity rate changes.

PlaceRate per kWhCost per month
United States$0.175$15.75
California$0.32$28.80
Texas$0.155$13.95
New York$0.25$22.50
Florida$0.155$13.95
Illinois$0.17$15.30
Pennsylvania$0.18$16.20
Ohio$0.17$15.30
Washington$0.115$10.35

About baseboard heater running costs

Electric baseboard heaters give roughly 250 W per foot of length. They are quiet but expensive to run all day.

Typical sizes: 500 W, 750 W, 1,000 W, 1,500 W, 2,000 W.

How to spend less: Lower the thermostat by 1 to 2 degrees and close doors to rooms you are not using.

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 Ohio. 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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