Gas prices in Missouri today

As of 2026-09-09High confidenceper gallon

Regular

$3.88

= €0.88/L · $1.03/L

-8.7% vs 51-state avg

Premium

$4.62

= €1.05/L · $1.22/L

Diesel

$5.56

= €1.27/L · $1.47/L

Daily state average incl. taxes — AAA — Daily State Gas Price Averages. Midgrade: $4.26/gal.

Gas stations in Missouri

Stations color-coded by brand — the panel ranks the providers and you can filter to one brand. Move the map anywhere in Missouriand press “Search this area”.

Explore stations, fuel options and directions.

The octane step

$0.73

a gallon more for premium than regular in Missouri. How that compares with every other state, and whether your car needs it.

Missouri gas prices by metro area

AAA reports separate daily averages for 8 Missouri metros — $0.16 a gallon between the cheapest and the dearest.

St. Joseph$3.79 Kansas City (MO only)$3.79 Joplin$3.85 Cape Girardeau$3.90 Springfield$3.91 St. Louis (MO only)$3.91 Columbia$3.92 Jefferson City$3.95

AAA metro averages · 2026-09-09

What a tank costs in Missouri, and how much of it is tax

Cost to fill up · regular at $3.88/gal

Compact — 12 gal$46.58
Sedan / crossover — 15 gal$58.23
SUV — 20 gal$77.64
Full-size pickup — 26 gal$100.93

From empty, at today’s Missouri average. Your vehicle and mileage →

Tax on every gallon

$0.48

$0.18 federal + $0.30 Missouri · 31 highest of 51

Where your money goes$3.40 fuel + $0.48 tax

Tax is 12% of the pump price in Missouri. Pre-tax figure is an estimate — state rates as of 2026-01-01.

Compare all 50 states’ gas taxes →

Missouri compared with neighbouring states

Where the line is worth crossing, and where it is not — each comparison shows how much of the gap is tax rather than the fuel itself.

Kansas$3.82−$0.06 vs Missouri Oklahoma$3.83−$0.05 vs Missouri Tennessee$3.83−$0.05 vs Missouri Kentucky$3.84−$0.04 vs Missouri Arkansas$3.85−$0.03 vs Missouri Nebraska$4.00+$0.12 vs Missouri Iowa$4.06+$0.18 vs Missouri Illinois$4.42+$0.54 vs Missouri

The answer, in full — and where it comes from

As of 9 September 2026, regular gasoline in Missouri averages $3.88/gal, the state average. Source: Daily fuel gauge report, AAA (a third-party aggregator, published daily). Retrieved by FuelWide on 9 September 2026.

Midgrade gasoline in Missouri averages $4.26/gal. Premium gasoline in Missouri averages $4.62/gal. Diesel in Missouri averages $5.56/gal.

Price:: $3.88/gal
Fuel:: Regular gasoline
Price basis:: State average
Applies to:: Missouri (state level)
Measured:: 2026-09-09
Retrieved:: 2026-09-09
Source:: AAA — a third-party aggregator

Daily fuel gauge report · State and metro averages: AAA · How we measure this

Frequently asked questions

How much is gas in Missouri right now?

Regular gasoline in Missouri averages $3.88 per gallon today (AAA daily state average). Midgrade is $4.26, premium $4.62 and diesel $5.56.

Is gas in Missouri expensive compared to other states?

Missouri ranks 12 of 51 states from cheapest to most expensive for regular gas this week.

Is gas in Missouri above or below the US average?

Regular in Missouri is 8.7% below the unweighted mean of AAA's 51 state averages ($4.25/gal), measured on 2026-09-09. The EIA publishes a separate, volume-weighted national average weekly; the two are different measurements and will not match.

How much tax is on a gallon of gas in Missouri?

$0.48 a gallon — $0.18 federal plus $0.30 in Missouri state taxes and fees, the 31 highest of 51 states. That is about 12% of the pump price. Rates as of 2026-01-01.

How much does it cost to fill up in Missouri?

At today's average of $3.88 a gallon, a 15-gallon sedan tank costs $58.23 to fill from empty, and a 26-gallon full-size pickup $100.93.