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

Distance from Grass Range, MT to Lamar, MS

Distance

1,612 mi

Time

1 day 5 hours

Gas Cost

$150 - $292

There are 1,310.17 miles from Grass Range to Lamar in southeast direction and 1,612 miles (2,594.26 kilometers) by car, following the I-29 route.

Grass Range and Lamar are 1 day 5 hours far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Lamar, MS.

Please note the time difference between Grass Range, MT and Lamar, MS is 1 hour. The current time in Grass Range is 3:06 am and the current time in Lamar is 4:06 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 Lamar, MS? 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 64.73 gallons of gas to cover the route between Grass Range, MT and Lamar, MS.

The estimated cost of gas to go from Grass Range to Lamar is $211.16.

During the route, an average car will release 1,268.26 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 Lamar, MS

If you want to meet halfway between Grass Range, MT and Lamar, MS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.608507 and -96.83378, or 43º 36' 30.6252" N, 96º 50' 1.608" W. This location is 805.93 miles away from Grass Range, MT and Lamar, MS and it would take approximately 14 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Buffalo Ridge, SD, situated 742 miles from Grass Range, MT and 869 miles from Lamar, MS. It would take 13 hours 3 mins to go from Grass Range to Buffalo Ridge and 16 hours 40 mins to go from Lamar to Buffalo Ridge.

Major City Closest to Halfway Point

The major city closest to the halfway point between Grass Range, MT and Lamar, MS is Sioux Falls, SD, situated 751 miles from Grass Range, MT and 866 miles from Lamar, MS. It would take 13 hours 14 mins to go from Grass Range to Sioux Falls and 16 hours 39 mins to go from Lamar to Sioux Falls.