Georgia vs Tennessee gas prices
Regular gas is $0.19 a gallon cheaper in Tennessee — $2.88 on a 15-gallon fill-up. The two share a border, so that gap is worth knowing before you cross it.
Georgia
Tennessee| Grade | GA | TN | Diff. | |
|---|---|---|---|---|
| Regular | $3.87 | $3.68 | $0.19TN | Tennessee |
| Midgrade | $4.33 | $4.13 | $0.20TN | Tennessee |
| Premium | $4.76 | $4.53 | $0.22TN | Tennessee |
| Diesel | $5.27 | $5.05 | $0.22TN | Tennessee |
Where the $0.19 gap actually comes from
36% of it is tax. Georgia charges $0.07 more per gallon in federal and state taxes than Tennessee. The remaining $0.12 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 $0.19 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 Georgia or Tennessee?
Regular gas is cheaper in Tennessee, at $3.68 a gallon against $3.87 in Georgia — a gap of $0.19, or 5.2%. On a 15-gallon fill-up that is $2.88. Figures are AAA daily state averages for 2026-08-02.
Why is gas more expensive in Georgia?
36% of the $0.19 gap is tax rather than the cost of the fuel. Georgia levies $0.07 more per gallon in federal and state taxes; the remaining $0.12 is a genuine difference in what the fuel, refining and distribution cost.
Is diesel cheaper in Georgia or Tennessee?
Diesel is cheaper in Tennessee at $5.05 a gallon, against $5.27 in Georgia — $0.22 a gallon apart.
Is it worth crossing from Georgia into Tennessee to fill up?
If you are already near the line, yes: a 15-gallon fill saves about $2.88. Driving out of your way for it rarely pays — at $3.87 a gallon and 25 mpg, a 9-mile round trip would eat the whole saving in fuel alone, before your time.