Distance between cities › USA › Montana › Boulder, MT › Distance from Boulder to Augusta Book Hotels

Distance from Boulder, MT to Augusta, MT

Distance

103 mi

Time

2 hours 1 min

Gas Cost

$9 - $18

There are 87.73 miles from Boulder to Augusta in north direction and 103 miles (165.76 kilometers) by car, following the I-15 route.

Boulder and Augusta are 2 hours 1 min far apart, if you drive non-stop .

This is the fastest route from Boulder, MT to Augusta, MT. The halfway point is Wolf Creek, MT.

Boulder, MT and Augusta, MT are in the same time zone (MDT). Current time in both locations is 9:21 pm.

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Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Augusta, MT? Here there are some offers to rent a car in Boulder, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Boulder »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 4.14 gallons of gas to cover the route between Boulder, MT and Augusta, MT.

The estimated cost of gas to go from Boulder to Augusta is $13.31.

During the route, an average car will release 81.15 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 $3.21 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Boulder, MT and Augusta, MT

If you want to meet halfway between Boulder, MT and Augusta, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.887596 and -112.099869, or 46º 53' 15.3456" N, 112º 5' 59.5284" W. This location is 51.57 miles away from Boulder, MT and Augusta, MT and it would take approximately 1 hour to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wolf Creek, MT, situated 63 miles from Boulder, MT and 41 miles from Augusta, MT. It would take 1 hour 7 mins to go from Boulder to Wolf Creek and 1 hour to go from Augusta to Wolf Creek.