Distance between cities › USA › Texas › Lillian, TX › Distance from Lillian to Roy Book Hotels

Distance from Lillian, TX to Roy, MT

Distance

1,445 mi

Time

1 day 2 hours

Gas Cost

$135 - $262

There are 1,196.34 miles from Lillian to Roy in northwest direction and 1,445 miles (2,325.50 kilometers) by car, following the I-25 route.

Lillian and Roy are 1 day 2 hours far apart, if you drive non-stop .

This is the fastest route from Lillian, TX to Roy, MT.

Please note the time difference between Lillian, TX and Roy, MT is 1 hour. The current time in Lillian is 1:58 pm and the current time in Roy is 12:58 pm.

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Lowest Price Rental Cars in Lillian, TX

Planning on renting a car to go from Lillian, TX to Roy, MT? Here there are some offers to rent a car in Lillian, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Lillian »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 58.02 gallons of gas to cover the route between Lillian, TX and Roy, MT.

The estimated cost of gas to go from Lillian to Roy is $189.27.

During the route, an average car will release 1,136.76 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 Lillian, TX and Roy, MT

If you want to meet halfway between Lillian, TX and Roy, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.668023 and -104.091912, or 39º 40' 4.8828" N, 104º 5' 30.8832" W. This location is 722.37 miles away from Lillian, TX and Roy, MT and it would take approximately 13 hours to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Deer Trail, CO, situated 725 miles from Lillian, TX and 720 miles from Roy, MT. It would take 13 hours 28 mins to go from Lillian to Deer Trail and 12 hours 35 mins to go from Roy to Deer Trail.