Cost to Run a Tankless Electric Water Heater in Ohio
Ohio's average residential electricity rate is 19.5¢/kWh as of April 2026 — the 35th cheapest in the country, 4% above the U.S. average. At typical usage (0.7 hours/day), a tankless electric water heater here costs $74.69 per month.
Per hour
$3.51
at 13,000–27,000 W
Per day
$2.46
0.7 hours/day
Per month
$74.69
383 kWh
Per year
$897
4,599 kWh
By usage level in Ohio
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (0.5 hrs/day) | $1.23 | $37.35 | $448 |
| Typical (0.7 hrs/day) | $2.46 | $74.69 | $897 |
| Heavy (1.4 hrs/day) | $4.91 | $149 | $1,794 |
Ohio vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a tankless electric water heater in Ohio?
At Ohio's current average residential rate of 19.5¢/kWh (April 2026), a tankless electric water heater with typical usage costs about $2.46 per day, $74.69 per month, or $897 per year.
Is running a tankless electric water heater in Ohio more expensive than average?
Yes. Ohio's electricity costs about 4% more than the U.S. average, so the same usage costs $74.69 per month here versus $72.01 nationally.
What does electricity cost in Ohio right now?
Ohio residents pay an average of 19.5¢ per kWh as of April 2026 — the 35th cheapest rate of the 51 U.S. jurisdictions we track.