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

Distance from Boulder, MT to Hammond, MT

Distance

422 mi

Time

7 hours 41 mins

Gas Cost

$39 - $76

There are 354.22 miles from Boulder to Hammond in east direction and 422 miles (679.14 kilometers) by car, following the I-90 route.

Boulder and Hammond are 7 hours 41 mins far apart, if you drive non-stop .

This is the fastest route from Boulder, MT to Hammond, MT. The halfway point is Laurel, MT.

Boulder, MT and Hammond, MT are in the same time zone (MDT). Current time in both locations is 1:38 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Boulder, MT to Hammond, MT:

Lowest Price Rental Cars in Boulder, MT

Planning on renting a car to go from Boulder, MT to Hammond, 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 16.93 gallons of gas to cover the route between Boulder, MT and Hammond, MT.

The estimated cost of gas to go from Boulder to Hammond is $54.61.

During the route, an average car will release 331.75 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 Hammond, MT

If you want to meet halfway between Boulder, MT and Hammond, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.690006 and -108.684029, or 45º 41' 24.0216" N, 108º 41' 2.5044" W. This location is 210.81 miles away from Boulder, MT and Hammond, MT and it would take approximately 3 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Laurel, MT, situated 210 miles from Boulder, MT and 212 miles from Hammond, MT. It would take 3 hours 23 mins to go from Boulder to Laurel and 4 hours 33 mins to go from Hammond to Laurel.

Major City Closest to Halfway Point

The major city closest to the halfway point between Boulder, MT and Hammond, MT is Billings, MT, situated 226 miles from Boulder, MT and 196 miles from Hammond, MT. It would take 3 hours 41 mins to go from Boulder to and 4 hours 16 mins to go from Hammond to Billings.