How Much Does a 500-watt appliance Cost to Run in Ohio?
A 500-watt appliance uses 0.5 kWh per hour and costs $0.085 per hour at $0.17/kWh in Ohio. Over 4 hours a day that is $0.34 per day, $10.20 per month and $124.10 per year.
Calculate your own cost
- Per hour
- $0.0850.5 kWh
- Per day
- $0.342 kWh
- Per week
- $2.3814 kWh
- Per month (30 days)
- $10.2060 kWh
- Per year
- $124.10730 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 $0.17/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 4 hours a day for 30 days, it costs about $10.20 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 Ohio
| Used per day | Energy per day | Cost per day | Cost per month | Cost per year |
|---|---|---|---|---|
| 1 hour | 0.5 kWh | $0.085 | $2.55 | $31.03 |
| 2 hours | 1 kWh | $0.17 | $5.10 | $62.05 |
| 3 hours | 1.5 kWh | $0.255 | $7.65 | $93.08 |
| 4 hours | 2 kWh | $0.34 | $10.20 | $124.10 |
| 5 hours | 2.5 kWh | $0.425 | $12.75 | $155.13 |
| 6 hours | 3 kWh | $0.51 | $15.30 | $186.15 |
| 7 hours | 3.5 kWh | $0.595 | $17.85 | $217.18 |
| 8 hours | 4 kWh | $0.68 | $20.40 | $248.20 |
| 9 hours | 4.5 kWh | $0.765 | $22.95 | $279.23 |
| 10 hours | 5 kWh | $0.85 | $25.50 | $310.25 |
| 11 hours | 5.5 kWh | $0.935 | $28.05 | $341.28 |
| 12 hours | 6 kWh | $1.02 | $30.60 | $372.30 |
| 13 hours | 6.5 kWh | $1.11 | $33.15 | $403.33 |
| 14 hours | 7 kWh | $1.19 | $35.70 | $434.35 |
| 15 hours | 7.5 kWh | $1.28 | $38.25 | $465.38 |
| 16 hours | 8 kWh | $1.36 | $40.80 | $496.40 |
| 17 hours | 8.5 kWh | $1.45 | $43.35 | $527.43 |
| 18 hours | 9 kWh | $1.53 | $45.90 | $558.45 |
| 19 hours | 9.5 kWh | $1.62 | $48.45 | $589.48 |
| 20 hours | 10 kWh | $1.70 | $51.00 | $620.50 |
| 21 hours | 10.5 kWh | $1.79 | $53.55 | $651.53 |
| 22 hours | 11 kWh | $1.87 | $56.10 | $682.55 |
| 23 hours | 11.5 kWh | $1.96 | $58.65 | $713.58 |
| 24 hours | 12 kWh | $2.04 | $61.20 | $744.60 |
How we worked it out
- Energy per hour: 500 W ÷ 1,000 = 0.5 kWh
- Cost per hour: 0.5 kWh × $0.17 = $0.085
- Cost per day: × 4 hours = $0.34
- Month and year: × 30 days = $10.20, × 365 days = $124.10
Ohio electricity prices
Ohio pays about $0.17 per kWh, which is 3% 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.
| Place | Rate per kWh | Cost 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 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.