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Cost to run an electric water heater in Ohio
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$0.78/hour
Electric Water Heater at 4,000 W in Ohio (19.38¢/kWh) · $70.70/month at 3 h/day
By hours of use
| Use | Per day | Per month | Per year |
|---|---|---|---|
| 1 h/day | $0.78 | $23.57 | $282.95 |
| 2 h/day | $1.55 | $47.13 | $565.90 |
| 3 h/day | $2.33 | $70.70 | $848.84 |
| 4 h/day | $3.10 | $94.26 | $1,131.79 |
| 8 h/day | $6.20 | $188.53 | $2,263.58 |
| 12 h/day | $9.30 | $282.79 | $3,395.38 |
| 24 h/day | $18.60 | $565.59 | $6,790.75 |
Tank water heaters use 3,000-5,500 W elements; a family typically runs them 2-4 hours a day. Heat-pump models use about a third.
Same appliance, nearby states
FAQ
How much does it cost to run an electric water heater in Ohio?
At 4,000 W and 19.38¢/kWh: $0.78 per hour, $2.33 per day and $70.70 per month at 3 h/day.
How does Ohio compare with other states?
The same use costs $46.40/month in Nevada (cheapest) and $172.11/month in Hawaii (most expensive); the US average is $66.25.
Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).
Electric Water Heater cost calculator · Electricity cost in Ohio
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