Denver, CO to Salt Lake City, UT Moving Truck Gas Cost

Fuel cost by truck size

Based on 521 miles, a gas price of $4.356 and a diesel price of $6.422 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	33	$142	$167
10 to 12 ft truck	11	47	$206	$243
15 to 17 ft truck	9	58	$252	$297
20 to 22 ft truck	8	65	$284	$334
26 ft truck	7	74	$324	$381
26 ft truck (diesel)	8	65	$418	$492

The gap between the smallest and largest trucks on this route is about $182 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
Denver, CO	$4.244	$6.422	Denver average
Salt Lake City, UT	$4.468	$6.422	Rocky Mountain average

Gas runs about $0.22 a gallon cheaper around Denver, CO. Fill the tank before you leave Denver and stretch it as far as you safely can.

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 Denver, CO to Salt Lake City, UT a 2-day drive, so budget for hotel nights and meals on top of fuel. The rental itself and any per-mile fees are charged separately from fuel.

Other moves

Going the other way? See Salt Lake City, UT to Denver, CO.

Moving truck gas cost from Denver, CO to Salt Lake City, UT