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

Distance from Grass Range, MT to Avon, MT

Distance

256 mi

Time

4 hours 43 mins

Gas Cost

$23 - $45

There are 181.66 miles from Grass Range to Avon in west direction and 256 miles (411.99 kilometers) by car, following the I-15 route.

Grass Range and Avon are 4 hours 43 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Avon, MT. The halfway point is Belt, MT.

Grass Range, MT and Avon, MT are in the same time zone (MDT). Current time in both locations is 10:55 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Avon, 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 10.28 gallons of gas to cover the route between Grass Range, MT and Avon, MT.

The estimated cost of gas to go from Grass Range to Avon is $32.74.

During the route, an average car will release 201.39 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 Avon, MT

If you want to meet halfway between Grass Range, MT and Avon, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.439102 and -111.004677, or 47º 26' 20.7672" N, 111º 0' 16.8372" W. This location is 127.98 miles away from Grass Range, MT and Avon, MT and it would take approximately 2 hours 21 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Belt, MT, situated 118 miles from Grass Range, MT and 140 miles from Avon, MT. It would take 1 hour 50 mins to go from Grass Range to Belt and 2 hours 31 mins to go from Avon to Belt.