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

Distance from Boulder, MT to Annapolis, IL

Distance

1,615 mi

Time

1 day 5 hours

Gas Cost

$151 - $293

There are 1,321.42 miles from Boulder to Annapolis in southeast direction and 1,615 miles (2,599.09 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Boulder and Annapolis are 1 day 5 hours far apart, if you drive non-stop .

This is the fastest route from Boulder, MT to Annapolis, IL. The halfway point is Pukwana, SD.

Please note the time difference between Boulder, MT and Annapolis, IL is 1 hour. The current time in Boulder is 12:01 am and the current time in Annapolis is 1:01 am.

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Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Annapolis, IL? 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 64.86 gallons of gas to cover the route between Boulder, MT and Annapolis, IL.

The estimated cost of gas to go from Boulder to Annapolis is $211.56.

During the route, an average car will release 1,270.67 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 Annapolis, IL

If you want to meet halfway between Boulder, MT and Annapolis, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.814472 and -99.077293, or 43º 48' 52.0992" N, 99º 4' 38.2548" W. This location is 807.47 miles away from Boulder, MT and Annapolis, IL and it would take approximately 14 hours 34 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Pukwana, SD, situated 814 miles from Boulder, MT and 850 miles from Annapolis, IL. It would take 12 hours 10 mins to go from Boulder to Pukwana and 13 hours 21 mins to go from Annapolis to Pukwana.