Distance between cities › USA › Missouri › Napton, MO › Distance from Napton to Judith Gap Book Hotels

Distance from Napton, MO to Judith Gap, MT

Distance

1,218 mi

Time

21 hours 23 mins

Gas Cost

$114 - $221

There are 991.94 miles from Napton to Judith Gap in northwest direction and 1,218 miles (1,960.18 kilometers) by car, following the I-90 route.

Napton and Judith Gap are 21 hours 23 mins far apart, if you drive non-stop .

This is the fastest route from Napton, MO to Judith Gap, MT.

Please note the time difference between Napton, MO and Judith Gap, MT is 1 hour. The current time in Napton is 5:44 pm and the current time in Judith Gap is 4:44 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Napton, MO

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Napton »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 48.92 gallons of gas to cover the route between Napton, MO and Judith Gap, MT.

The estimated cost of gas to go from Napton to Judith Gap is $159.58.

During the route, an average car will release 958.48 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 Napton, MO and Judith Gap, MT

If you want to meet halfway between Napton, MO 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 43.91254 and -100.290818, or 43º 54' 45.144" N, 100º 17' 26.9448" W. This location is 609.08 miles away from Napton, MO and Judith Gap, MT and it would take approximately 10 hours 41 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Vivian, SD, situated 640 miles from Napton, MO and 581 miles from Judith Gap, MT. It would take 11 hours 9 mins to go from Napton to Vivian and 10 hours 22 mins to go from Judith Gap to Vivian.