Distance between cities › USA › Oregon › Eugene, OR › Distance from Eugene to Sweet Grass Book Hotels

Distance from Eugene, OR to Sweet Grass, MT

Distance

916 mi

Time

16 hours 48 mins

Gas Cost

$85 - $166

There are 628.40 miles from Eugene to Sweet Grass in northeast direction and 916 miles (1,474.16 kilometers) by car, following the I-90 and US-2 and US-395 route.

Eugene and Sweet Grass are 16 hours 48 mins far apart, if you drive non-stop .

This is the fastest route from Eugene, OR to Sweet Grass, MT. The halfway point is Dalton Gardens, ID.

Please note the time difference between Eugene, OR and Sweet Grass, MT is 1 hour. The current time in Eugene is 4:12 am and the current time in Sweet Grass is 5:12 am.

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Lowest Price Rental Cars in Eugene, OR

Planning on renting a car to go from Eugene, OR to Sweet Grass, MT? Here there are some offers to rent a car in Eugene, OR

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Eugene »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 36.81 gallons of gas to cover the route between Eugene, OR and Sweet Grass, MT.

The estimated cost of gas to go from Eugene to Sweet Grass is $120.06.

During the route, an average car will release 721.11 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 Eugene, OR and Sweet Grass, MT

If you want to meet halfway between Eugene, OR and Sweet Grass, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.694782 and -116.814430, or 47º 41' 41.2152" N, 116º 48' 51.948" W. This location is 458.24 miles away from Eugene, OR and Sweet Grass, MT and it would take approximately 8 hours 24 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dalton Gardens, ID, situated 484 miles from Eugene, OR and 411 miles from Sweet Grass, MT. It would take 7 hours 44 mins to go from Eugene to Dalton Gardens and 7 hours 31 mins to go from Sweet Grass to Dalton Gardens.

Major City Closest to Halfway Point

The major city closest to the halfway point between Eugene, OR and Sweet Grass, MT is Spokane, WA, situated 450 miles from Eugene, OR and 515 miles from Sweet Grass, MT. It would take 7 hours 12 mins to go from Eugene to and 8 hours 3 mins to go from Sweet Grass to Spokane.