Distance between cities › USA › Montana › Roberts, MT › Distance from Roberts to Millbrook Book Hotels

Distance from Roberts, MT to Millbrook, IL

Distance

1,274 mi

Time

22 hours 28 mins

Gas Cost

$119 - $231

There are 1,062.49 miles from Roberts to Millbrook in southeast direction and 1,274 miles (2,050.30 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Roberts and Millbrook are 22 hours 28 mins far apart, if you drive non-stop .

This is the fastest route from Roberts, MT to Millbrook, IL.

Please note the time difference between Roberts, MT and Millbrook, IL is 1 hour. The current time in Roberts is 1:23 am and the current time in Millbrook is 2:23 am.

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Lowest Price Rental Cars in Roberts, MT

Planning on renting a car to go from Roberts, MT to Millbrook, IL? Here there are some offers to rent a car in Roberts, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Roberts »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 51.16 gallons of gas to cover the route between Roberts, MT and Millbrook, IL.

The estimated cost of gas to go from Roberts to Millbrook is $166.88.

During the route, an average car will release 1,002.32 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 Roberts, MT and Millbrook, IL

If you want to meet halfway between Roberts, MT and Millbrook, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.695591 and -98.34309, or 43º 41' 44.1276" N, 98º 20' 35.124" W. This location is 636.94 miles away from Roberts, MT and Millbrook, IL and it would take approximately 11 hours 14 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mount Vernon, SD, situated 625 miles from Roberts, MT and 652 miles from Millbrook, IL. It would take 10 hours 56 mins to go from Roberts to Mount Vernon and 11 hours 40 mins to go from Millbrook to Mount Vernon.