Kansas City, MO to St. Louis, MO Moving Truck Gas Cost

Fuel cost by truck size

Based on 248 miles, a gas price of $4.145 and a diesel price of $6.352 a gallon. Towing a car on a trailer or dolly lowers fuel economy by about 15%.

Truck	MPG	Gallons	Fuel cost	Towing a car
Cargo van	16	16	$64	$76
10 to 12 ft truck	11	23	$93	$110
15 to 17 ft truck	9	28	$114	$134
20 to 22 ft truck	8	31	$128	$151
26 ft truck	7	35	$147	$173
26 ft truck (diesel)	8	31	$197	$232

The gap between the smallest and largest trucks on this route is about $83 in fuel alone, so it pays to rent only as much truck as you need.

Fuel prices at each end of the move

Where	Gas	Diesel	Price basis
Kansas City, MO	$4.145	$6.352	Midwest average
St. Louis, MO	$4.145	$6.352	Midwest average

Prices at the two ends are within a few cents of each other, so where you fill up matters less than how fast you drive.

Weekly retail averages from the U.S. Energy Information Administration for the week of October 19, 2026. Prices along the way will vary. EIA source

Planning the drive

A loaded box truck is slower than a car on hills and safest at moderate speeds, and most drivers find 450 miles a comfortable day. That makes Kansas City, MO to St. Louis, MO a one-day drive. The rental itself and any per-mile fees are charged separately from fuel.

Other moves

Going the other way? See St. Louis, MO to Kansas City, MO.

Moving truck gas cost from Kansas City, MO to St. Louis, MO