Distance between cities › USA › Montana › Moccasin, MT › Distance from Moccasin to Dewey Book Hotels

Distance from Moccasin, MT to Dewey, SD

Distance

477 mi

Time

8 hours 59 mins

Gas Cost

$45 - $87

There are 374.78 miles from Moccasin to Dewey in southeast direction and 477 miles (767.66 kilometers) by car, following the I-90 and US-14 and US-87 route.

Moccasin and Dewey are 8 hours 59 mins far apart, if you drive non-stop .

This is the fastest route from Moccasin, MT to Dewey, SD.

Moccasin, MT and Dewey, SD are in the same time zone (MDT). Current time in both locations is 2:17 am.

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Lowest Price Rental Cars in Moccasin, MT

Planning on renting a car to go from Moccasin, MT to Dewey, SD? Here there are some offers to rent a car in Moccasin, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Moccasin »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 19.16 gallons of gas to cover the route between Moccasin, MT and Dewey, SD.

The estimated cost of gas to go from Moccasin to Dewey is $63.07.

During the route, an average car will release 375.45 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 $3.29 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Moccasin, MT and Dewey, SD

If you want to meet halfway between Moccasin, MT and Dewey, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.040171 and -107.330662, or 45º 2' 24.6156" N, 107º 19' 50.3832" W. This location is 238.58 miles away from Moccasin, MT and Dewey, SD and it would take approximately 4 hours 29 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Parkman, WY, situated 247 miles from Moccasin, MT and 233 miles from Dewey, SD. It would take 4 hours 30 mins to go from Moccasin to Parkman and 4 hours 49 mins to go from Dewey to Parkman.