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

Distance from Melstone, MT to Boulder, MT

Distance

260 mi

Time

5 hours 32 mins

Gas Cost

$24 - $46

There are 203.91 miles from Melstone to Boulder in west direction and 260 miles (418.43 kilometers) by car, following the US-12 route.

Melstone and Boulder are 5 hours 32 mins far apart, if you drive non-stop .

This is the fastest route from Melstone, MT to Boulder, MT.

Melstone, MT and Boulder, MT are in the same time zone (MDT). Current time in both locations is 9:04 am.

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Lowest Price Rental Cars in Melstone, MT

Planning on renting a car to go from Melstone, MT to Boulder, MT? Here there are some offers to rent a car in Melstone, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Melstone »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 10.43 gallons of gas to cover the route between Melstone, MT and Boulder, MT.

The estimated cost of gas to go from Melstone to Boulder is $33.51.

During the route, an average car will release 204.36 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 Melstone, MT and Boulder, MT

If you want to meet halfway between Melstone, MT and Boulder, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.467393 and -110.22319, or 46º 28' 2.6148" N, 110º 13' 23.484" W. This location is 129.86 miles away from Melstone, MT and Boulder, MT and it would take approximately 2 hours 46 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Martinsdale, MT, situated 130 miles from Melstone, MT and 124 miles from Boulder, MT. It would take 2 hours 59 mins to go from Melstone to Martinsdale and 2 hours 38 mins to go from Boulder to Martinsdale.