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

Distance from Grass Range, MT to Oakley, CA

Distance

1,194 mi

Time

22 hours 9 mins

Gas Cost

$111 - $216

There are 904.05 miles from Grass Range to Oakley in southwest direction and 1,194 miles (1,921.56 kilometers) by car, following the I-80 route.

Grass Range and Oakley are 22 hours 9 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Oakley, CA is 1 hour. The current time in Grass Range is 4:33 am and the current time in Oakley 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 Oakley, 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 47.95 gallons of gas to cover the route between Grass Range, MT and Oakley, CA.

The estimated cost of gas to go from Grass Range to Oakley is $156.40.

During the route, an average car will release 939.35 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 Oakley, CA

If you want to meet halfway between Grass Range, MT and Oakley, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.117952 and -114.686848, or 42º 7' 4.6272" N, 114º 41' 12.6528" W. This location is 596.92 miles away from Grass Range, MT and Oakley, CA and it would take approximately 11 hours 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Rogerson, ID, situated 581 miles from Grass Range, MT and 613 miles from Oakley, CA. It would take 11 hours 7 mins to go from Grass Range to Rogerson and 11 hours 3 mins to go from Oakley to Rogerson.