Ohio Electricity Cost Calculator

Homes in Ohio paid an average of 18.25¢ per kilowatt-hour from August 2025 to July 2026, 1% above the U.S. average of 17.99¢. That is the 18th-highest of 51, between Wisconsin (18.74¢) and Delaware (17.79¢).

The average Ohio home used 867 kWh a month — the 25th-least of the 51 — so its typical bill came to $158 a month, the 22nd-highest. At the national rate the same 867 kWh would cost $2 less a month.

In July 2026, the latest month published, the Ohio rate was 19.45¢.

At 18.25¢ per kWh, every extra 100 kWh a month adds $18.25 to the monthly bill and $219 to the year. The table runs from half to twice the Ohio average home's 867 kWh, using the same calculation as the calculator above.

The average Ohio home's bill peaked at about $224 in July 2026 and was lowest, about $117, in October 2025. Use ran from 642 kWh in April 2026 to 1,151 kWh in July 2026, 1.8 times as much.

The rate moved too, from 17.31¢ in December 2025 to 19.52¢ in May 2026. A monthly rate includes that month's fuel and seasonal charges, which is why the calculator uses the 12-month average for a yearly estimate.

Among the 10 largest providers listed, average residential rates in 2024 ran from 14.87¢ at South Central Power Company to 19.33¢ at Ohio Power Co. On the average Ohio home's 867 kWh that is a difference of $39 a month.

These are 2024 figures, the latest final year. The Ohio average was 15.99¢ that year and 18.25¢ over the last 12 months, up 14% — compare the providers with each other, not with today's average.

These providers serve 33% of Ohio's 5,142,108 residential customers. Many of the rest buy their power from a separate supplier while the local utility delivers it, so no single company's revenue covers their whole bill.