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

Distance from Grass Range, MT to Geronimo, TX

Distance

1,594 mi

Time

1 day 4 hours

Gas Cost

$149 - $289

There are 1,332.71 miles from Grass Range to Geronimo in southeast direction and 1,594 miles (2,565.29 kilometers) by car, following the US-87 route.

Grass Range and Geronimo are 1 day 4 hours far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Geronimo, TX.

Please note the time difference between Grass Range, MT and Geronimo, TX is 1 hour. The current time in Grass Range is 3:03 am and the current time in Geronimo is 4:03 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 Geronimo, TX? 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 64.03 gallons of gas to cover the route between Grass Range, MT and Geronimo, TX.

The estimated cost of gas to go from Grass Range to Geronimo is $208.87.

During the route, an average car will release 1,254.49 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 Geronimo, TX

If you want to meet halfway between Grass Range, MT and Geronimo, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.826 and -103.007634, or 38º 49' 33.6" N, 103º 0' 27.4824" W. This location is 797.18 miles away from Grass Range, MT and Geronimo, TX and it would take approximately 14 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wild Horse, CO, situated 771 miles from Grass Range, MT and 823 miles from Geronimo, TX. It would take 13 hours 16 mins to go from Grass Range to Wild Horse and 14 hours 58 mins to go from Geronimo to Wild Horse.