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

Distance from Grass Range, MT to Round Top, TX

Distance

1,604 mi

Time

1 day 4 hours

Gas Cost

$149 - $291

There are 1,338.56 miles from Grass Range to Round Top in southeast direction and 1,604 miles (2,581.39 kilometers) by car, following the US-87 route.

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

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

Please note the time difference between Grass Range, MT and Round Top, TX is 1 hour. The current time in Grass Range is 1:48 am and the current time in Round Top is 2:48 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Grass Range, MT to Round Top, TX:

Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Round Top, 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 64.40 gallons of gas to cover the route between Grass Range, MT and Round Top, TX.

The estimated cost of gas to go from Grass Range to Round Top is $210.09.

During the route, an average car will release 1,261.81 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 Round Top, TX

If you want to meet halfway between Grass Range, MT and Round Top, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.76401 and -102.807995, or 38º 45' 50.436" N, 102º 48' 28.782" W. This location is 801.84 miles away from Grass Range, MT and Round Top, TX and it would take approximately 14 hours 21 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kit Carson, CO, situated 785 miles from Grass Range, MT and 819 miles from Round Top, TX. It would take 13 hours 32 mins to go from Grass Range to Kit Carson and 15 hours 13 mins to go from Round Top to Kit Carson.