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

Distance from Grass Range, MT to Hillside, CO

Distance

794 mi

Time

14 hours 22 mins

Gas Cost

$66 - $129

There are 626.54 miles from Grass Range to Hillside in southeast direction and 794 miles (1,277.82 kilometers) by car, following the US-87 route.

Grass Range and Hillside are 14 hours 22 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Hillside, CO.

Grass Range, MT and Hillside, CO are in the same time zone (MDT). Current time in both locations is 12:18 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 Hillside, 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 31.88 gallons of gas to cover the route between Grass Range, MT and Hillside, CO.

The estimated cost of gas to go from Grass Range to Hillside is $93.08.

During the route, an average car will release 624.52 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 $2.92 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 Hillside, CO

If you want to meet halfway between Grass Range, MT and Hillside, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.836762 and -105.894403, or 42º 50' 12.3432" N, 105º 53' 39.8508" W. This location is 396.86 miles away from Grass Range, MT and Hillside, CO and it would take approximately 7 hours 11 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Glenrock, WY, situated 391 miles from Grass Range, MT and 405 miles from Hillside, CO. It would take 6 hours 49 mins to go from Grass Range to Glenrock and 7 hours 39 mins to go from Hillside to Glenrock.