Diesel Prices in Missouri Today
Average diesel price in Missouri: $6.348 per gallon on September 22, 2026. U.S. average $6.529. Updated daily.
What is the price of diesel in Missouri today?
Diesel in Missouri averages $6.348 per gallon today (September 22, 2026), $0.181 less than the U.S. average of $6.529. Missouri ranks #21 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.01 per mile on fuel in Missouri.
per gallon today
U.S. average $6.529
of 51 (1 = cheapest)
semi truck, today
Fuel cost per mile in Missouri
Estimated diesel cost at today's Missouri price of $6.348 a gallon, using fuel economy calibrated to FHWA and NACFE data.
| Truck | Fuel per mile | Fuel per 1,000 miles |
|---|---|---|
| Dry Van38,000 lbs, ~6.3 mpg | $1.01 | $1,010 |
| Reefer38,000 lbs, ~6.0 mpg | $1.05 | $1,051 |
| Flatbed40,000 lbs, ~6.0 mpg | $1.05 | $1,050 |
| Hotshot12,000 lbs, ~8.9 mpg | $0.71 | $713 |
| Box Truck7,000 lbs, ~9.1 mpg | $0.70 | $696 |
Your numbers depend on load weight, speed, terrain and idling. Enter them in the truck fuel cost calculator for an exact estimate.
Frequently asked questions
What is the price of diesel in Missouri today?
Diesel in Missouri averages $6.348 per gallon today (September 22, 2026), $0.181 less than the U.S. average of $6.529. Missouri ranks #21 of 51 for cheapest diesel (1 = cheapest). A loaded semi at about 6.3 mpg spends about $1.01 per mile on fuel in Missouri.
How much does it cost to fill a semi truck in Missouri?
At $6.35 a gallon, 150 gallons of diesel costs about $952 and 200 gallons about $1,270 in Missouri today.
Is diesel cheaper in Missouri than nearby states?
Among nearby states in the same region, the cheapest today is Oklahoma at $6.029 a gallon. Missouri is $6.348.
How often are Missouri diesel prices updated?
Every day. This page refreshes each morning from daily state averages, with the EIA weekly survey as a backup.
| Oklahoma | $6.029 |
| Tennessee | $6.215 |
| Nebraska | $6.231 |
| North Dakota | $6.239 |
| Kansas | $6.249 |
| South Dakota | $6.277 |
Source: AAA daily state average, September 22, 2026. All 50 states
Running freight through Missouri?
Texas Solutions dispatches semis for 5%, hotshots for 8% and box trucks for 10% of weekly gross. We plan lanes to cut empty miles and fuel.