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

Distance from Grass Range, MT to Fallbrook, CA

Distance

1,310 mi

Time

23 hours 37 mins

Gas Cost

$122 - $237

There are 1,041.63 miles from Grass Range to Fallbrook in southwest direction and 1,310 miles (2,108.24 kilometers) by car, following the I-15 route.

Grass Range and Fallbrook are 23 hours 37 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Fallbrook, CA is 1 hour. The current time in Grass Range is 2:59 am and the current time in Fallbrook is 1:59 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 Fallbrook, 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 52.61 gallons of gas to cover the route between Grass Range, MT and Fallbrook, CA.

The estimated cost of gas to go from Grass Range to Fallbrook is $171.60.

During the route, an average car will release 1,030.66 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 Fallbrook, CA

If you want to meet halfway between Grass Range, MT and Fallbrook, CA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.265673 and -111.710889, or 40º 15' 56.4228" N, 111º 42' 39.2004" W. This location is 654.95 miles away from Grass Range, MT and Fallbrook, CA and it would take approximately 11 hours 48 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Orem, UT, situated 644 miles from Grass Range, MT and 669 miles from Fallbrook, CA. It would take 12 hours 2 mins to go from Grass Range to Orem and 11 hours 43 mins to go from Fallbrook to Orem.

Major City Closest to Halfway Point

The major city closest to the halfway point between Grass Range, MT and Fallbrook, CA is Provo, UT, situated 649 miles from Grass Range, MT and 662 miles from Fallbrook, CA. It would take 12 hours 8 mins to go from Grass Range to Provo and 11 hours 36 mins to go from Fallbrook to Provo.

Major Cities Along the Route

Some other major cities along the route include North Las Vegas, NV, Murrieta, CA, West Jordan, UT, Salt Lake City, UT, Victorville, CA, Temecula, CA, Las Vegas, NV and San Bernardino, CA.