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

Distance from Grass Range, MT to Webster, SD

Distance

660 mi

Time

11 hours 35 mins

Gas Cost

$62 - $120

There are 551.89 miles from Grass Range to Webster in southeast direction and 660 miles (1,062.17 kilometers) by car, following the I-94 route.

Grass Range and Webster are 11 hours 35 mins far apart, if you drive non-stop .

This is the fastest route from Grass Range, MT to Webster, SD.

Please note the time difference between Grass Range, MT and Webster, SD is 1 hour. The current time in Grass Range is 3:00 am and the current time in Webster is 4:00 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 Webster, SD? 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 26.52 gallons of gas to cover the route between Grass Range, MT and Webster, SD.

The estimated cost of gas to go from Grass Range to Webster is $86.51.

During the route, an average car will release 519.62 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 Webster, SD

If you want to meet halfway between Grass Range, MT and Webster, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.881298 and -102.637952, or 46º 52' 52.6728" N, 102º 38' 16.6272" W. This location is 330.20 miles away from Grass Range, MT and Webster, SD and it would take approximately 5 hours 47 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 339 miles from Webster, SD. It would take 5 hours 43 mins to go from Grass Range to Gladstone and 5 hours 58 mins to go from Webster to Gladstone.