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

Distance from Boulder, MT to Potomac, MT

Distance

133 mi

Time

2 hours 27 mins

Gas Cost

$12 - $24

There are 82.40 miles from Boulder to Potomac in northwest direction and 133 miles (214.04 kilometers) by car, following the MT 200 route.

Boulder and Potomac are 2 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Boulder, MT to Potomac, MT. The halfway point is Garrison, MT.

Boulder, MT and Potomac, MT are in the same time zone (MDT). Current time in both locations is 12:00 am.

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Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Potomac, 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 5.33 gallons of gas to cover the route between Boulder, MT and Potomac, MT.

The estimated cost of gas to go from Boulder to Potomac is $17.14.

During the route, an average car will release 104.50 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 Potomac, MT

If you want to meet halfway between Boulder, MT and Potomac, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.568897 and -112.891136, or 46º 34' 8.0292" N, 112º 53' 28.0896" W. This location is 66.41 miles away from Boulder, MT and Potomac, MT and it would take approximately 1 hour 13 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Garrison, MT, situated 82 miles from Boulder, MT and 83 miles from Potomac, MT. It would take 1 hour 23 mins to go from Boulder to Garrison and 1 hour 20 mins to go from Potomac to Garrison.