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

Distance from Roberts, MT to Kennebec, SD

Distance

540 mi

Time

9 hours 36 mins

Gas Cost

$49 - $96

There are 468.22 miles from Roberts to Kennebec in southeast direction and 540 miles (869.05 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Roberts and Kennebec are 9 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Roberts, MT to Kennebec, SD.

Please note the time difference between Roberts, MT and Kennebec, SD is 1 hour. The current time in Roberts is 10:39 pm and the current time in Kennebec is 11:39 pm.

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Lowest Price Rental Cars in Roberts, MT

Planning on renting a car to go from Roberts, MT to Kennebec, SD? 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 21.70 gallons of gas to cover the route between Roberts, MT and Kennebec, SD.

The estimated cost of gas to go from Roberts to Kennebec is $69.54.

During the route, an average car will release 425.20 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 Roberts, MT and Kennebec, SD

If you want to meet halfway between Roberts, MT and Kennebec, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.065161 and -104.485293, or 45º 3' 54.5796" N, 104º 29' 7.0548" W. This location is 270.20 miles away from Roberts, MT and Kennebec, SD and it would take approximately 4 hours 48 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alzada, MT, situated 272 miles from Roberts, MT and 269 miles from Kennebec, SD. It would take 5 hours 3 mins to go from Roberts to Alzada and 4 hours 34 mins to go from Kennebec to Alzada.