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

Distance from Roberts, MT to Mongo, IN

Distance

1,419 mi

Time

1 day 1 hour

Gas Cost

$130 - $253

There are 1,218.64 miles from Roberts to Mongo in east direction and 1,419 miles (2,283.66 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Roberts and Mongo are 1 day 1 hour far apart, if you drive non-stop .

This is the fastest route from Roberts, MT to Mongo, IN.

Please note the time difference between Roberts, MT and Mongo, IN is 2 hours. The current time in Roberts is 10:46 pm (Mar 11) and the current time in Mongo 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 Mongo, IN? 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 57 gallons of gas to cover the route between Roberts, MT and Mongo, IN.

The estimated cost of gas to go from Roberts to Mongo is $182.63.

During the route, an average car will release 1,116.78 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 Mongo, IN

If you want to meet halfway between Roberts, MT and Mongo, IN or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.608469 and -96.842762, or 43º 36' 30.4884" N, 96º 50' 33.9432" W. This location is 709.67 miles away from Roberts, MT and Mongo, IN and it would take approximately 12 hours 41 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Buffalo Ridge, SD, situated 698 miles from Roberts, MT and 722 miles from Mongo, IN. It would take 12 hours 5 mins to go from Roberts to Buffalo Ridge and 13 hours 23 mins to go from Mongo to Buffalo Ridge.

Major City Closest to Halfway Point

The major city closest to the halfway point between Roberts, MT and Mongo, IN is Sioux Falls, SD, situated 707 miles from Roberts, MT and 721 miles from Mongo, IN. It would take 12 hours 16 mins to go from Roberts to Sioux Falls and 13 hours 23 mins to go from Mongo to Sioux Falls.