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

Distance from Grass Range, MT to Union, ND

Distance

667 mi

Time

11 hours 50 mins

Gas Cost

$62 - $121

There are 514.44 miles from Grass Range to Union in northeast direction and 667 miles (1,073.43 kilometers) by car, following the I-94 route.

Grass Range and Union are 11 hours 50 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Union, ND.

Please note the time difference between Grass Range, MT and Union, ND is 1 hour. The current time in Grass Range is 12:23 am and the current time in Union is 1:23 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 Union, ND? 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 26.77 gallons of gas to cover the route between Grass Range, MT and Union, ND.

The estimated cost of gas to go from Grass Range to Union is $87.32.

During the route, an average car will release 524.43 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 Union, ND

If you want to meet halfway between Grass Range, MT and Union, ND or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.880588 and -102.601342, or 46º 52' 50.1168" N, 102º 36' 4.8312" W. This location is 333.26 miles away from Grass Range, MT and Union, ND and it would take approximately 5 hours 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Gladstone, ND, situated 324 miles from Grass Range, MT and 345 miles from Union, ND. It would take 5 hours 43 mins to go from Grass Range to Gladstone and 6 hours 13 mins to go from Union to Gladstone.