Distance between cities › USA › South Dakota › Selby, SD › Distance from Selby to Grass Range Book Hotels

Distance from Selby, SD to Grass Range, MT

Distance

530 mi

Time

9 hours 19 mins

Gas Cost

$49 - $96

There are 431.74 miles from Selby to Grass Range in northwest direction and 530 miles (852.95 kilometers) by car, following the MT 200 S route.

Selby and Grass Range are 9 hours 19 mins far apart, if you drive non-stop .

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

Please note the time difference between Selby, SD and Grass Range, MT is 1 hour. The current time in Selby is 8:51 am and the current time in Grass Range is 7:51 am.

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Lowest Price Rental Cars in Selby, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Selby »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 21.27 gallons of gas to cover the route between Selby, SD and Grass Range, MT.

The estimated cost of gas to go from Selby to Grass Range is $69.37.

During the route, an average car will release 416.64 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 Selby, SD and Grass Range, MT

If you want to meet halfway between Selby, SD and Grass Range, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.933667 and -103.936097, or 46º 56' 1.2012" N, 103º 56' 9.9492" W. This location is 264.76 miles away from Selby, SD and Grass Range, MT and it would take approximately 4 hours 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Beach, ND, situated 279 miles from Selby, SD and 253 miles from Grass Range, MT. It would take 4 hours 51 mins to go from Selby to Beach and 4 hours 34 mins to go from Grass Range to Beach.