How much is Ohio's gas tax?

Ohio levies a state excise tax of 38.5 cents per gallon on gasoline and 47 cents per gallon on diesel fuel. These rates were set by the 2019 transportation budget and fund road and bridge maintenance across the state.

What is the federal gas tax?

The federal excise tax is 18.4 cents per gallon on gasoline and 24.4 cents per gallon on diesel. It has not changed since 1993 and funds the federal Highway Trust Fund on top of the state tax.

How much gas tax do I pay per year?

Multiply your annual gallons by the combined per-gallon rate. A driver covering 12,000 miles at 25 MPG burns 480 gallons of gasoline, paying about 273 dollars a year in combined Ohio and federal gas tax.

Is gas tax included in the pump price?

Yes. Both the Ohio and federal excise taxes are baked into the price you see at the pump, so you pay them automatically without a separate line item. This tool isolates how much of the price is tax.

Do electric vehicles pay Ohio gas tax?

No, because they buy no fuel. To make up for it, Ohio charges electric vehicles a $200 annual registration surcharge and plug-in hybrids $100, approximating the gas tax those vehicles would otherwise pay.

Ohio Gas Tax Calculator

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Every gallon you pump in Ohio carries both a state and a federal excise tax. This calculator shows how much of the pump price is tax and totals it across a single fill-up or a full year of driving.

How it works

Gas tax is a flat amount per gallon, so the math is simply gallons times rate:

Gasoline : 38.5 c Ohio + 18.4 c federal = 56.9 c / gallon
Diesel   : 47.0 c Ohio + 24.4 c federal = 71.4 c / gallon
gallons (annual) = annual miles / MPG
tax = gallons x combined rate

The tool lets you supply gallons directly for a per-fill-up figure, or enter annual miles and fuel economy to estimate a yearly total.

Example

A driver covering 12,000 miles a year at 25 MPG burns 480 gallons of gasoline. At a combined 56.9 cents per gallon, that is about 273 dollars a year in fuel tax — roughly 211 dollars to Ohio and 88 dollars to the federal government.

Notes

Rates are flat per-gallon excise taxes and do not include general state or local sales tax, which Ohio does not apply to motor fuel. Diesel, aviation, and alternative fuels follow separate schedules. Confirm current rates at tax.ohio.gov before relying on the figures.