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

Distance from Dewey, SD to Silver Spring, MD

Distance

1,691 mi

Time

1 day 6 hours

Gas Cost

$158 - $306

There are 1,430.98 miles from Dewey to Silver Spring in southeast direction and 1,691 miles (2,721.40 kilometers) by car, following the I-90 and US-14 route.

Dewey and Silver Spring are 1 day 6 hours far apart, if you drive non-stop .

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

Please note the time difference between Dewey, SD and Silver Spring, MD is 2 hours. The current time in Dewey is 6:00 am and the current time in Silver Spring is 8:00 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Silver Spring, 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 67.92 gallons of gas to cover the route between Dewey, SD and Silver Spring, MD.

The estimated cost of gas to go from Dewey to Silver Spring is $221.55.

During the route, an average car will release 1,330.63 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 Silver Spring, MD

If you want to meet halfway between Dewey, SD and Silver Spring, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.562483 and -89.732325, or 43º 33' 44.9388" N, 89º 43' 56.37" W. This location is 845.57 miles away from Dewey, SD and Silver Spring, MD and it would take approximately 15 hours 27 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Lake Delton, WI, situated 809 miles from Dewey, SD and 883 miles from Silver Spring, MD. It would take 14 hours 26 mins to go from Dewey to Lake Delton and 16 hours 35 mins to go from Silver Spring to Lake Delton.