Distance between cities › USA › South Dakota › Dewey, SD › Distance from Dewey to Ault Book Hotels

Distance from Dewey, SD to Ault, CO

Distance

271 mi

Time

5 hours 20 mins

Gas Cost

$25 - $49

There are 206.77 miles from Dewey to Ault in south direction and 271 miles (436.13 kilometers) by car, following the I-25 route.

Dewey and Ault are 5 hours 20 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Ault, CO.

Dewey, SD and Ault, CO are in the same time zone (MDT). Current time in both locations is 3:09 am.

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Lowest Price Rental Cars in Dewey, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Dewey »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 10.89 gallons of gas to cover the route between Dewey, SD and Ault, CO.

The estimated cost of gas to go from Dewey to Ault is $35.53.

During the route, an average car will release 213.38 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 Dewey, SD and Ault, CO

If you want to meet halfway between Dewey, SD and Ault, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.532947 and -105.030437, or 42º 31' 58.6092" N, 105º 1' 49.5732" W. This location is 135.59 miles away from Dewey, SD and Ault, CO and it would take approximately 2 hours 40 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Glendo, WY, situated 130 miles from Dewey, SD and 142 miles from Ault, CO. It would take 2 hours 41 mins to go from Dewey to Glendo and 2 hours 41 mins to go from Ault to Glendo.