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

Distance from Grass Range, MT to Frederick, CO

Distance

621 mi

Time

10 hours 38 mins

Gas Cost

$58 - $113

There are 516.13 miles from Grass Range to Frederick in southeast direction and 621 miles (999.40 kilometers) by car, following the US-87 route.

Grass Range and Frederick are 10 hours 38 mins far apart, if you drive non-stop .

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

Grass Range, MT and Frederick, CO are in the same time zone (MDT). Current time in both locations is 6:04 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Grass Range, MT to Frederick, CO:

Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Frederick, 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 24.94 gallons of gas to cover the route between Grass Range, MT and Frederick, CO.

The estimated cost of gas to go from Grass Range to Frederick is $81.37.

During the route, an average car will release 488.71 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 Frederick, CO

If you want to meet halfway between Grass Range, MT and Frederick, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.63268 and -106.587728, or 43º 37' 57.648" N, 106º 35' 15.8208" W. This location is 310.56 miles away from Grass Range, MT and Frederick, CO and it would take approximately 5 hours 19 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kaycee, WY, situated 300 miles from Grass Range, MT and 322 miles from Frederick, CO. It would take 5 hours 21 mins to go from Grass Range to Kaycee and 5 hours 20 mins to go from Frederick to Kaycee.