Michigan vs Ohio gas prices
Regular gas is $0.28 a gallon cheaper in Ohio — $4.17 on a 15-gallon fill-up. The two share a border, so that gap is worth knowing before you cross it.
Michigan| Grade | MI | OH | Diff. | |
|---|---|---|---|---|
| Regular | $4.36 | $4.08 | $0.28OH | Ohio |
| Midgrade | $4.98 | $4.63 | $0.35OH | Ohio |
| Premium | $5.57 | $5.15 | $0.42OH | Ohio |
| Diesel | $5.42 | $5.27 | $0.15OH | Ohio |
Where the $0.28 gap actually comes from
50% of it is tax. Michigan charges $0.14 more per gallon in federal and state taxes than Ohio. The remaining $0.14 is a real difference in what the fuel, refining and distribution cost — refinery proximity, pipeline access and state fuel-blend rules.
Fuel, refining, distribution and marginFederal and state taxes Pre-tax figures are estimates — see the note below.
What the gap is worth
Based on today’s $0.28 per-gallon difference, which moves week to week. Use the fuel cost calculator for your own mileage and vehicle.
Prices by metro area
State averages hide a lot. These are the cheapest metros AAA reports on each side.
Other comparisons
Frequently asked questions
Is gas cheaper in Michigan or Ohio?
Regular gas is cheaper in Ohio, at $4.08 a gallon against $4.36 in Michigan — a gap of $0.28, or 6.8%. On a 15-gallon fill-up that is $4.17. Figures are AAA daily state averages for 2026-08-02.
Why is gas more expensive in Michigan?
50% of the $0.28 gap is tax rather than the cost of the fuel. Michigan levies $0.14 more per gallon in federal and state taxes; the remaining $0.14 is a genuine difference in what the fuel, refining and distribution cost.
Is diesel cheaper in Michigan or Ohio?
Diesel is cheaper in Ohio at $5.27 a gallon, against $5.42 in Michigan — $0.15 a gallon apart.
Is it worth crossing from Michigan into Ohio to fill up?
If you are already near the line, yes: a 15-gallon fill saves about $4.17. Driving out of your way for it rarely pays — at $4.36 a gallon and 25 mpg, a 12-mile round trip would eat the whole saving in fuel alone, before your time.