Distance between cities › USA › Missouri › Williamstown, MO › Distance from Williamstown to Roscoe Book Hotels

Distance from Williamstown, MO to Roscoe, MT

Distance

1,182 mi

Time

21 hours 31 mins

Gas Cost

$110 - $214

There are 961.75 miles from Williamstown to Roscoe in northwest direction and 1,182 miles (1,902.24 kilometers) by car, following the I-90 route.

Williamstown and Roscoe are 21 hours 31 mins far apart, if you drive non-stop .

This is the fastest route from Williamstown, MO to Roscoe, MT.

Please note the time difference between Williamstown, MO and Roscoe, MT is 1 hour. The current time in Williamstown is 1:19 pm and the current time in Roscoe is 12:19 pm.

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Lowest Price Rental Cars in Williamstown, MO

Planning on renting a car to go from Williamstown, MO to Roscoe, MT? Here there are some offers to rent a car in Williamstown, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Williamstown »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 47.46 gallons of gas to cover the route between Williamstown, MO and Roscoe, MT.

The estimated cost of gas to go from Williamstown to Roscoe is $154.83.

During the route, an average car will release 929.90 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 Williamstown, MO and Roscoe, MT

If you want to meet halfway between Williamstown, MO and Roscoe, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.874896 and -99.735527, or 43º 52' 29.6256" N, 99º 44' 7.8972" W. This location is 590.92 miles away from Williamstown, MO and Roscoe, MT and it would take approximately 10 hours 45 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Kennebec, SD, situated 621 miles from Williamstown, MO and 562 miles from Roscoe, MT. It would take 11 hours 38 mins to go from Williamstown to Kennebec and 9 hours 57 mins to go from Roscoe to Kennebec.