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

Distance from Grass Range, MT to Seymour, MO

Distance

1,312 mi

Time

23 hours 33 mins

Gas Cost

$122 - $238

There are 1,065.06 miles from Grass Range to Seymour in southeast direction and 1,312 miles (2,111.46 kilometers) by car, following the I-29 route.

Grass Range and Seymour are 23 hours 33 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Seymour, MO.

Please note the time difference between Grass Range, MT and Seymour, MO is 1 hour. The current time in Grass Range is 3:52 am and the current time in Seymour is 4:52 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 Seymour, 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 52.67 gallons of gas to cover the route between Grass Range, MT and Seymour, MO.

The estimated cost of gas to go from Grass Range to Seymour is $171.82.

During the route, an average car will release 1,031.98 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 Seymour, MO

If you want to meet halfway between Grass Range, MT and Seymour, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.756756 and -99.273353, or 43º 45' 24.3216" N, 99º 16' 24.0708" W. This location is 655.79 miles away from Grass Range, MT and Seymour, MO and it would take approximately 11 hours 46 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Chamberlain, SD, situated 612 miles from Grass Range, MT and 701 miles from Seymour, MO. It would take 11 hours 2 mins to go from Grass Range to Chamberlain and 12 hours 40 mins to go from Seymour to Chamberlain.