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

Distance from Grass Range, MT to Obrien, CA

Distance

1,143 mi

Time

21 hours 57 mins

Gas Cost

$107 - $207

There are 796.56 miles from Grass Range to Obrien in southwest direction and 1,143 miles (1,839.48 kilometers) by car, following the MT 200 route.

Grass Range and Obrien are 21 hours 57 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Obrien, CA.

Please note the time difference between Grass Range, MT and Obrien, CA is 1 hour. The current time in Grass Range is 4:28 am and the current time in Obrien is 3:28 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 Obrien, CA? 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 45.92 gallons of gas to cover the route between Grass Range, MT and Obrien, CA.

The estimated cost of gas to go from Grass Range to Obrien is $149.80.

During the route, an average car will release 899.70 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 Obrien, CA

If you want to meet halfway between Grass Range, MT and Obrien, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.390873 and -117.849057, or 47º 23' 27.1428" N, 117º 50' 56.6052" W. This location is 571.72 miles away from Grass Range, MT and Obrien, CA and it would take approximately 10 hours 58 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sprague, WA, situated 536 miles from Grass Range, MT and 609 miles from Obrien, CA. It would take 9 hours 54 mins to go from Grass Range to Sprague and 12 hours 7 mins to go from Obrien to Sprague.

Major City Closest to Halfway Point

The major city closest to the halfway point between Grass Range, MT and Obrien, CA is Spokane, WA, situated 500 miles from Grass Range, MT and 644 miles from Obrien, CA. It would take 9 hours 16 mins to go from Grass Range to Spokane and 12 hours 45 mins to go from Obrien to Spokane.