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

Distance from Grass Range, MT to Mount Wilson, CA

Distance

1,291 mi

Time

23 hours 35 mins

Gas Cost

$120 - $234

There are 1,007.22 miles from Grass Range to Mount Wilson in southwest direction and 1,291 miles (2,077.66 kilometers) by car, following the I-15 route.

Grass Range and Mount Wilson are 23 hours 35 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Mount Wilson, CA is 1 hour. The current time in Grass Range is 4:34 am and the current time in Mount Wilson is 3:34 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 Mount Wilson, 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 51.84 gallons of gas to cover the route between Grass Range, MT and Mount Wilson, CA.

The estimated cost of gas to go from Grass Range to Mount Wilson is $169.11.

During the route, an average car will release 1,015.70 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 Mount Wilson, CA

If you want to meet halfway between Grass Range, MT and Mount Wilson, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.350198 and -111.769529, or 40º 21' 0.7128" N, 111º 46' 10.3044" W. This location is 645.44 miles away from Grass Range, MT and Mount Wilson, CA and it would take approximately 11 hours 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Pleasant Grove, UT, situated 640 miles from Grass Range, MT and 654 miles from Mount Wilson, CA. It would take 11 hours 59 mins to go from Grass Range to Pleasant Grove and 11 hours 45 mins to go from Mount Wilson to Pleasant Grove.

Major City Closest to Halfway Point

The major city closest to the halfway point between Grass Range, MT and Mount Wilson, CA is Salt Lake City, UT, situated 606 miles from Grass Range, MT and 687 miles from Mount Wilson, CA. It would take 11 hours 22 mins to go from Grass Range to Salt Lake City and 12 hours 21 mins to go from Mount Wilson to Salt Lake City.