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

Distance from Grass Range, MT to Antonito, CO

Distance

904 mi

Time

16 hours 9 mins

Gas Cost

$83 - $161

There are 701.95 miles from Grass Range to Antonito in southeast direction and 904 miles (1,454.85 kilometers) by car, following the US-87 route.

Grass Range and Antonito are 16 hours 9 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Antonito, CO. The halfway point is Orin, WY.

Grass Range, MT and Antonito, CO are in the same time zone (MDT). Current time in both locations is 10:58 pm.

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Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Antonito, CO? 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 36.31 gallons of gas to cover the route between Grass Range, MT and Antonito, CO.

The estimated cost of gas to go from Grass Range to Antonito is $116.33.

During the route, an average car will release 711.33 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Grass Range, MT and Antonito, CO

If you want to meet halfway between Grass Range, MT and Antonito, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.597107 and -105.098602, or 42º 35' 49.5852" N, 105º 5' 54.9672" W. This location is 452.03 miles away from Grass Range, MT and Antonito, CO and it would take approximately 8 hours 4 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Orin, WY, situated 430 miles from Grass Range, MT and 478 miles from Antonito, CO. It would take 8 hours 10 mins to go from Grass Range to Orin and 7 hours 15 mins to go from Antonito to Orin.

Major Cities Along the Route

Some major cities along the route include Pueblo, CO,Colorado Springs, CO,Centennial, CO,Highlands Ranch, CO,Fort Collins, CO,Denver, CO,Thornton, CO,Westminster, CO,Arvada, CO,Lakewood, CO, and Billings, MT.