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

Distance from Grass Range, MT to Rupert, ID

Distance

514 mi

Time

9 hours 50 mins

Gas Cost

$48 - $93

There are 386.78 miles from Grass Range to Rupert in southwest direction and 514 miles (827.20 kilometers) by car, following the US-191 route.

Grass Range and Rupert are 9 hours 50 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Rupert, ID.

Grass Range, MT and Rupert, ID are in the same time zone (MDT). Current time in both locations is 3:12 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 Rupert, ID? 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 20.63 gallons of gas to cover the route between Grass Range, MT and Rupert, ID.

The estimated cost of gas to go from Grass Range to Rupert is $67.31.

During the route, an average car will release 404.27 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 Rupert, ID

If you want to meet halfway between Grass Range, MT and Rupert, ID or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.069711 and -111.194594, or 45º 4' 10.9596" N, 111º 11' 40.5384" W. This location is 256.90 miles away from Grass Range, MT and Rupert, ID and it would take approximately 4 hours 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Big Sky, MT, situated 241 miles from Grass Range, MT and 279 miles from Rupert, ID. It would take 4 hours 51 mins to go from Grass Range to Big Sky and 5 hours 9 mins to go from Rupert to Big Sky.