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

Distance from Grass Range, MT to Austin, MO

Distance

1,155 mi

Time

20 hours 30 mins

Gas Cost

$108 - $209

There are 938.06 miles from Grass Range to Austin in southeast direction and 1,155 miles (1,858.79 kilometers) by car, following the I-29 route.

Grass Range and Austin are 20 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Austin, MO. The halfway point is Okaton, SD.

Please note the time difference between Grass Range, MT and Austin, MO is 1 hour. The current time in Grass Range is 12:23 am and the current time in Austin is 1:23 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 Austin, MO? 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 46.38 gallons of gas to cover the route between Grass Range, MT and Austin, MO.

The estimated cost of gas to go from Grass Range to Austin is $151.29.

During the route, an average car will release 908.67 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 Austin, MO

If you want to meet halfway between Grass Range, MT and Austin, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.883785 and -100.820679, or 43º 53' 1.626" N, 100º 49' 14.4444" W. This location is 577.43 miles away from Grass Range, MT and Austin, MO and it would take approximately 10 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Okaton, SD, situated 588 miles from Grass Range, MT and 624 miles from Austin, MO. It would take 9 hours 38 mins to go from Grass Range to Okaton and 8 hours 56 mins to go from Austin to Okaton.