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

Distance from Roberts, MT to Alpena, SD

Distance

653 mi

Time

11 hours 40 mins

Gas Cost

$60 - $116

There are 535.67 miles from Roberts to Alpena in east direction and 653 miles (1,050.90 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Roberts and Alpena are 11 hours 40 mins far apart, if you drive non-stop .

This is the fastest route from Roberts, MT to Alpena, SD. The halfway point is Beulah, WY.

Please note the time difference between Roberts, MT and Alpena, SD is 1 hour. The current time in Roberts is 10:38 pm and the current time in Alpena is 11:38 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Roberts, MT to Alpena, SD:

Lowest Price Rental Cars in Roberts, MT

Planning on renting a car to go from Roberts, MT to Alpena, 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 26.22 gallons of gas to cover the route between Roberts, MT and Alpena, SD.

The estimated cost of gas to go from Roberts to Alpena is $84.02.

During the route, an average car will release 513.79 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 Alpena, SD

If you want to meet halfway between Roberts, MT and Alpena, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.547184 and -103.984535, or 44º 32' 49.8624" N, 103º 59' 4.326" W. This location is 326.49 miles away from Roberts, MT and Alpena, SD and it would take approximately 5 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Beulah, WY, situated 358 miles from Roberts, MT and 351 miles from Alpena, SD. It would take 5 hours 46 mins to go from Roberts to Beulah and 5 hours 5 mins to go from Alpena to Beulah.