Distance between cities › USA › Montana › Grass Range, MT › Distance from Grass Range to Sumner Book Hotels

Distance from Grass Range, MT to Sumner, IA

Distance

1,023 mi

Time

18 hours 25 mins

Gas Cost

$95 - $185

There are 864.89 miles from Grass Range to Sumner in southeast direction and 1,023 miles (1,646.36 kilometers) by car, following the I-94 route.

Grass Range and Sumner are 18 hours 25 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Sumner, IA.

Please note the time difference between Grass Range, MT and Sumner, IA is 1 hour. The current time in Grass Range is 1:47 am and the current time in Sumner is 2:47 am.

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Lowest Price Rental Cars in Grass Range, MT

Planning on renting a car to go from Grass Range, MT to Sumner, IA? Here there are some offers to rent a car in Grass Range, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Grass Range »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 41.08 gallons of gas to cover the route between Grass Range, MT and Sumner, IA.

The estimated cost of gas to go from Grass Range to Sumner is $134.02.

During the route, an average car will release 804.93 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 Grass Range, MT and Sumner, IA

If you want to meet halfway between Grass Range, MT and Sumner, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.877722 and -99.297313, or 46º 52' 39.7992" N, 99º 17' 50.3268" W. This location is 511.50 miles away from Grass Range, MT and Sumner, IA and it would take approximately 9 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Medina, ND, situated 481 miles from Grass Range, MT and 544 miles from Sumner, IA. It would take 8 hours 14 mins to go from Grass Range to Medina and 10 hours 17 mins to go from Sumner to Medina.