Distance between cities › USA › Montana › Grass Range, MT › Distance from Grass Range to Thompson Book Hotels

Distance from Grass Range, MT to Thompson, UT

Distance

813 mi

Time

15 hours 17 mins

Gas Cost

$76 - $147

There are 558.43 miles from Grass Range to Thompson in south direction and 813 miles (1,308.40 kilometers) by car, following the I-15 and US-20 route.

Grass Range and Thompson are 15 hours 17 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Thompson, UT.

Grass Range, MT and Thompson, UT are in the same time zone (MDT). Current time in both locations is 3:16 am.

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Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Thompson, UT? Here there are some offers to rent a car in Grass Range, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Grass Range »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 32.64 gallons of gas to cover the route between Grass Range, MT and Thompson, UT.

The estimated cost of gas to go from Grass Range to Thompson is $106.48.

During the route, an average car will release 639.53 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Grass Range, MT and Thompson, UT

If you want to meet halfway between Grass Range, MT and Thompson, UT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.505248 and -112.052657, or 43º 30' 18.8928" N, 112º 3' 9.5652" W. This location is 406.40 miles away from Grass Range, MT and Thompson, UT and it would take approximately 7 hours 38 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Idaho Falls, ID, situated 394 miles from Grass Range, MT and 420 miles from Thompson, UT. It would take 7 hours 53 mins to go from Grass Range to Idaho Falls and 7 hours 29 mins to go from Thompson to Idaho Falls.