Distance between cities › USA › South Dakota › Selby, SD › Distance from Selby to Judith Gap Book Hotels

Distance from Selby, SD to Judith Gap, MT

Distance

598 mi

Time

10 hours 34 mins

Gas Cost

$56 - $108

There are 472.40 miles from Selby to Judith Gap in west direction and 598 miles (962.39 kilometers) by car, following the MT 200 S route.

Selby and Judith Gap are 10 hours 34 mins far apart, if you drive non-stop .

This is the fastest route from Selby, SD to Judith Gap, MT.

Please note the time difference between Selby, SD and Judith Gap, MT is 1 hour. The current time in Selby is 8:58 am and the current time in Judith Gap is 7:58 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Selby, SD to Judith Gap, MT:

Lowest Price Rental Cars in Selby, SD

Planning on renting a car to go from Selby, SD to Judith Gap, MT? Here there are some offers to rent a car in Selby, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Selby »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 24.01 gallons of gas to cover the route between Selby, SD and Judith Gap, MT.

The estimated cost of gas to go from Selby to Judith Gap is $78.31.

During the route, an average car will release 470.34 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 Selby, SD and Judith Gap, MT

If you want to meet halfway between Selby, SD and Judith Gap, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 47.093865 and -104.540373, or 47º 5' 37.914" N, 104º 32' 25.3428" W. This location is 298.89 miles away from Selby, SD and Judith Gap, MT and it would take approximately 5 hours 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Glendive, MT, situated 315 miles from Selby, SD and 283 miles from Judith Gap, MT. It would take 5 hours 25 mins to go from Selby to Glendive and 5 hours 14 mins to go from Judith Gap to Glendive.