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

Distance from Roberts, MT to Cavour, SD

Distance

634 mi

Time

12 hours

Gas Cost

$58 - $113

There are 548.88 miles from Roberts to Cavour in east direction and 634 miles (1,020.32 kilometers) by car, following the SD 34 and SD 79 route.

Roberts and Cavour are 12 hours far apart, if you drive non-stop .

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

Please note the time difference between Roberts, MT and Cavour, SD is 1 hour. The current time in Roberts is 11:46 pm (Mar 11) and the current time in Cavour is 12:46 am (Mar 12).

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Lowest Price Rental Cars in Roberts, MT

Planning on renting a car to go from Roberts, MT to Cavour, 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 25.45 gallons of gas to cover the route between Roberts, MT and Cavour, SD.

The estimated cost of gas to go from Roberts to Cavour is $81.53.

During the route, an average car will release 498.55 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 Cavour, SD

If you want to meet halfway between Roberts, MT and Cavour, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.557558 and -103.739153, or 44º 33' 27.2088" N, 103º 44' 20.9508" W. This location is 316.81 miles away from Roberts, MT and Cavour, SD and it would take approximately 6 hours to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Saint Onge, SD, situated 321 miles from Roberts, MT and 313 miles from Cavour, SD. It would take 6 hours 1 min to go from Roberts to Saint Onge and 5 hours 59 mins to go from Cavour to Saint Onge.