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

Distance from Boulder, MT to Ada, MI

Distance

1,516 mi

Time

1 day 3 hours

Gas Cost

$141 - $275

There are 1,322.84 miles from Boulder to Ada in east direction and 1,516 miles (2,439.77 kilometers) by car and ferry, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Boulder and Ada are 1 day 3 hours far apart, if you drive non-stop for 1 day 1 hour and take a ferry for 2 hours 30 mins .

This is the fastest route from Boulder, MT to Ada, MI. The halfway point is Chamberlain, SD.

Please note the time difference between Boulder, MT and Ada, MI is 2 hours. The current time in Boulder is 12:01 am and the current time in Ada is 2:01 am.

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Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Ada, MI? 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 60.87 gallons of gas to cover the route between Boulder, MT and Ada, MI.

The estimated cost of gas to go from Boulder to Ada is $198.55.

During the route, an average car will release 1,192.53 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 Boulder, MT and Ada, MI

If you want to meet halfway between Boulder, MT and Ada, MI or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.833706 and -99.371201, or 43º 50' 1.3416" N, 99º 22' 16.3236" W. This location is 757.81 miles away from Boulder, MT and Ada, MI and it would take approximately 13 hours 58 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Chamberlain, SD, situated 803 miles from Boulder, MT and 770 miles from Ada, MI. It would take 12 hours 3 mins to go from Boulder to Chamberlain and 12 hours 33 mins to go from Ada to Chamberlain.