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

Distance from Dewey, SD to Showell, MD

Distance

1,810 mi

Time

1 day 9 hours

Gas Cost

$169 - $328

There are 1,536.88 miles from Dewey to Showell in southeast direction and 1,810 miles (2,912.91 kilometers) by car, following the I-90 and US-14 route.

Dewey and Showell are 1 day 9 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Showell, MD.

Please note the time difference between Dewey, SD and Showell, MD is 2 hours. The current time in Dewey is 7:21 pm and the current time in Showell is 9:21 pm.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Showell, MD? 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 72.69 gallons of gas to cover the route between Dewey, SD and Showell, MD.

The estimated cost of gas to go from Dewey to Showell is $237.11.

During the route, an average car will release 1,424.09 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 Showell, MD

If you want to meet halfway between Dewey, SD and Showell, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.899241 and -89.07907, or 42º 53' 57.2676" N, 89º 4' 44.652" W. This location is 904.96 miles away from Dewey, SD and Showell, MD and it would take approximately 16 hours 47 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Edgerton, WI, situated 882 miles from Dewey, SD and 930 miles from Showell, MD. It would take 15 hours 44 mins to go from Dewey to Edgerton and 17 hours 58 mins to go from Showell to Edgerton.

Major City Closest to Halfway Point

The major city closest to the halfway point between Dewey, SD and Showell, MD is Madison, WI, situated 861 miles from Dewey, SD and 957 miles from Showell, MD. It would take 15 hours 30 mins to go from Dewey to Madison and 18 hours 31 mins to go from Showell to Madison.