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

Distance from Grass Range, MT to Ocheyedan, IA

Distance

824 mi

Time

14 hours 36 mins

Gas Cost

$77 - $149

There are 691.19 miles from Grass Range to Ocheyedan in southeast direction and 824 miles (1,326.10 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Grass Range and Ocheyedan are 14 hours 36 mins far apart, if you drive non-stop .

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

Please note the time difference between Grass Range, MT and Ocheyedan, IA is 1 hour. The current time in Grass Range is 3:08 am and the current time in Ocheyedan is 4:08 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 Ocheyedan, 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 33.11 gallons of gas to cover the route between Grass Range, MT and Ocheyedan, IA.

The estimated cost of gas to go from Grass Range to Ocheyedan is $108.01.

During the route, an average car will release 648.73 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 Ocheyedan, IA

If you want to meet halfway between Grass Range, MT and Ocheyedan, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.103436 and -102.839688, or 44º 6' 12.3696" N, 102º 50' 22.8768" W. This location is 412.24 miles away from Grass Range, MT and Ocheyedan, IA and it would take approximately 7 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is New Underwood, SD, situated 428 miles from Grass Range, MT and 399 miles from Ocheyedan, IA. It would take 8 hours 7 mins to go from Grass Range to New Underwood and 6 hours 34 mins to go from Ocheyedan to New Underwood.