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

Distance from Chamberlain, SD to Mildred, MT

Distance

496 mi

Time

9 hours 31 mins

Gas Cost

$45 - $88

There are 337.77 miles from Chamberlain to Mildred in northwest direction and 496 miles (798.23 kilometers) by car, following the I-90 Business route.

Chamberlain and Mildred are 9 hours 31 mins far apart, if you drive non-stop .

This is the fastest route from Chamberlain, SD to Mildred, MT. The halfway point is Piedmont, SD.

Please note the time difference between Chamberlain, SD and Mildred, MT is 1 hour. The current time in Chamberlain is 12:26 am (Mar 12) and the current time in Mildred is 11:26 pm (Mar 11).

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Lowest Price Rental Cars in Chamberlain, SD

Planning on renting a car to go from Chamberlain, SD to Mildred, 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 19.94 gallons of gas to cover the route between Chamberlain, SD and Mildred, MT.

The estimated cost of gas to go from Chamberlain to Mildred is $63.89.

During the route, an average car will release 390.66 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Chamberlain, SD and Mildred, MT

If you want to meet halfway between Chamberlain, SD and Mildred, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.275928 and -103.398445, or 44º 16' 33.3408" N, 103º 23' 54.402" W. This location is 248.25 miles away from Chamberlain, SD and Mildred, MT and it would take approximately 4 hours 45 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Piedmont, SD, situated 219 miles from Chamberlain, SD and 255 miles from Mildred, MT. It would take 2 hours 53 mins to go from Chamberlain to Piedmont and 5 hours 55 mins to go from Mildred to Piedmont.