Distance between cities › USA › South Dakota › Chamberlain, SD › Distance from Chamberlain to Marion Book Hotels

Distance from Chamberlain, SD to Marion, MT

Distance

991 mi

Time

17 hours 19 mins

Gas Cost

$92 - $180

There are 792.26 miles from Chamberlain to Marion in northwest direction and 991 miles (1,594.86 kilometers) by car, following the I-90 route.

Chamberlain and Marion are 17 hours 19 mins far apart, if you drive non-stop .

This is the fastest route from Chamberlain, SD to Marion, MT.

Please note the time difference between Chamberlain, SD and Marion, MT is 1 hour. The current time in Chamberlain is 1:51 am and the current time in Marion is 12:51 am.

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Lowest Price Rental Cars in Chamberlain, SD

Planning on renting a car to go from Chamberlain, SD to Marion, MT? Here there are some offers to rent a car in Chamberlain, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Chamberlain »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 39.80 gallons of gas to cover the route between Chamberlain, SD and Marion, MT.

The estimated cost of gas to go from Chamberlain to Marion is $129.81.

During the route, an average car will release 779.67 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 Chamberlain, SD and Marion, MT

If you want to meet halfway between Chamberlain, SD and Marion, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.74901 and -107.847943, or 45º 44' 56.436" N, 107º 50' 52.5948" W. This location is 495.45 miles away from Chamberlain, SD and Marion, MT and it would take approximately 8 hours 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Hardin, MT, situated 476 miles from Chamberlain, SD and 517 miles from Marion, MT. It would take 8 hours 22 mins to go from Chamberlain to Hardin and 9 hours 2 mins to go from Marion to Hardin.