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

Distance from Boulder, MT to Black Eagle, MT

Distance

120 mi

Time

1 hour 58 mins

Gas Cost

$11 - $21

There are 97.50 miles from Boulder to Black Eagle in northeast direction and 120 miles (193.12 kilometers) by car, following the I-15 route.

Boulder and Black Eagle are 1 hour 58 mins far apart, if you drive non-stop .

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

Boulder, MT and Black Eagle, MT are in the same time zone (MDT). Current time in both locations is 1:32 am.

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Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Black Eagle, 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 4.81 gallons of gas to cover the route between Boulder, MT and Black Eagle, MT.

The estimated cost of gas to go from Boulder to Black Eagle is $15.50.

During the route, an average car will release 94.19 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 $3.23 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Boulder, MT and Black Eagle, MT

If you want to meet halfway between Boulder, MT and Black Eagle, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.016129 and -112.060005, or 47º 0' 58.0644" N, 112º 3' 36.018" W. This location is 59.85 miles away from Boulder, MT and Black Eagle, MT and it would take approximately 59 minutes 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 57 miles from Black Eagle, MT. It would take 1 hour 2 mins to go from Boulder to Wolf Creek and 1 hour 5 mins to go from Black Eagle to Wolf Creek.