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

Distance from Grass Range, MT to Westby, MT

Distance

334 mi

Time

6 hours 47 mins

Gas Cost

$30 - $59

There are 254.15 miles from Grass Range to Westby in northeast direction and 334 miles (537.52 kilometers) by car, following the MT 200 route.

Grass Range and Westby are 6 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Westby, MT. The halfway point is Brockway, MT.

Grass Range, MT and Westby, MT are in the same time zone (MDT). Current time in both locations is 11:13 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 Westby, MT? 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 13.40 gallons of gas to cover the route between Grass Range, MT and Westby, MT.

The estimated cost of gas to go from Grass Range to Westby is $42.67.

During the route, an average car will release 262.45 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 $3.19 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 Westby, MT

If you want to meet halfway between Grass Range, MT and Westby, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.323158 and -105.982666, or 47º 19' 23.3688" N, 105º 58' 57.5976" W. This location is 166.78 miles away from Grass Range, MT and Westby, MT and it would take approximately 3 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brockway, MT, situated 179 miles from Grass Range, MT and 178 miles from Westby, MT. It would take 4 hours 15 mins to go from Grass Range to Brockway and 4 hours 21 mins to go from Westby to Brockway.