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

Distance from Grass Range, MT to Saint Lawrence, SD

Distance

657 mi

Time

11 hours 44 mins

Gas Cost

$61 - $119

There are 505.69 miles from Grass Range to Saint Lawrence in southeast direction and 657 miles (1,057.34 kilometers) by car, following the MT 200 route.

Grass Range and Saint Lawrence are 11 hours 44 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Saint Lawrence, SD.

Please note the time difference between Grass Range, MT and Saint Lawrence, SD is 1 hour. The current time in Grass Range is 4:35 am and the current time in Saint Lawrence is 5:35 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 Saint Lawrence, SD? 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 26.38 gallons of gas to cover the route between Grass Range, MT and Saint Lawrence, SD.

The estimated cost of gas to go from Grass Range to Saint Lawrence is $86.05.

During the route, an average car will release 516.82 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 Saint Lawrence, SD

If you want to meet halfway between Grass Range, MT and Saint Lawrence, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.890431 and -102.868297, or 46º 53' 25.5516" N, 102º 52' 5.8692" W. This location is 328.42 miles away from Grass Range, MT and Saint Lawrence, SD and it would take approximately 5 hours 52 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dickinson, ND, situated 312 miles from Grass Range, MT and 346 miles from Saint Lawrence, SD. It would take 5 hours 31 mins to go from Grass Range to Dickinson and 6 hours 16 mins to go from Saint Lawrence to Dickinson.