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

Distance from Dewey, SD to Stoneham, CO

Distance

259 mi

Time

5 hours 31 mins

Gas Cost

$24 - $47

There are 203.02 miles from Dewey to Stoneham in south direction and 259 miles (416.82 kilometers) by car, following the US-85 route.

Dewey and Stoneham are 5 hours 31 mins far apart, if you drive non-stop .

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

Dewey, SD and Stoneham, CO are in the same time zone (MDT). Current time in both locations is 7:23 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Dewey, SD to Stoneham, CO:

Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Stoneham, 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 10.41 gallons of gas to cover the route between Dewey, SD and Stoneham, CO.

The estimated cost of gas to go from Dewey to Stoneham is $33.95.

During the route, an average car will release 203.89 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 Stoneham, CO

If you want to meet halfway between Dewey, SD and Stoneham, CO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.460406 and -103.79274, or 42º 27' 37.4616" N, 103º 47' 33.864" W. This location is 129.57 miles away from Dewey, SD and Stoneham, CO and it would take approximately 2 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 Harrison, NE, situated 104 miles from Dewey, SD and 155 miles from Stoneham, CO. It would take 2 hours 14 mins to go from Dewey to Harrison and 3 hours 16 mins to go from Stoneham to Harrison.