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

Distance from Grass Range, MT to Mount Hamilton, CA

Distance

1,265 mi

Time

23 hours 39 mins

Gas Cost

$118 - $229

There are 935.63 miles from Grass Range to Mount Hamilton in southwest direction and 1,265 miles (2,035.82 kilometers) by car, following the I-80 route.

Grass Range and Mount Hamilton are 23 hours 39 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Mount Hamilton, CA is 1 hour. The current time in Grass Range is 4:33 am and the current time in Mount Hamilton is 3:33 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 Hamilton, 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 50.82 gallons of gas to cover the route between Grass Range, MT and Mount Hamilton, CA.

The estimated cost of gas to go from Grass Range to Mount Hamilton is $165.78.

During the route, an average car will release 995.69 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 Hamilton, CA

If you want to meet halfway between Grass Range, MT and Mount Hamilton, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.619004 and -114.80611, or 41º 37' 8.4144" N, 114º 48' 21.996" W. This location is 632.72 miles away from Grass Range, MT and Mount Hamilton, CA and it would take approximately 11 hours 49 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Jackpot, NV, situated 599 miles from Grass Range, MT and 666 miles from Mount Hamilton, CA. It would take 11 hours 29 mins to go from Grass Range to Jackpot and 12 hours 10 mins to go from Mount Hamilton to Jackpot.