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

Distance from Grass Range, MT to Robert Lee, TX

Distance

1,330 mi

Time

23 hours 36 mins

Gas Cost

$124 - $241

There are 1,134.34 miles from Grass Range to Robert Lee in southeast direction and 1,330 miles (2,140.43 kilometers) by car, following the US-87 route.

Grass Range and Robert Lee are 23 hours 36 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Robert Lee, TX is 1 hour. The current time in Grass Range is 3:07 am and the current time in Robert Lee is 4:07 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 Robert Lee, 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 53.40 gallons of gas to cover the route between Grass Range, MT and Robert Lee, TX.

The estimated cost of gas to go from Grass Range to Robert Lee is $174.19.

During the route, an average car will release 1,046.23 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 Robert Lee, TX

If you want to meet halfway between Grass Range, MT and Robert Lee, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.74012 and -104.707006, or 39º 44' 24.432" N, 104º 42' 25.2216" W. This location is 664.84 miles away from Grass Range, MT and Robert Lee, TX 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 town to the halfway point is Watkins, CO, situated 658 miles from Grass Range, MT and 673 miles from Robert Lee, TX. It would take 11 hours 14 mins to go from Grass Range to Watkins and 12 hours 25 mins to go from Robert Lee to Watkins.

Major City Closest to Halfway Point

The major city closest to the halfway point between Grass Range, MT and Robert Lee, TX is Denver, CO, situated 644 miles from Grass Range, MT and 699 miles from Robert Lee, TX. It would take 11 hours 4 mins to go from Grass Range to Denver and 12 hours 40 mins to go from Robert Lee to Denver.