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

Distance from Dewey, SD to Valley, NE

Distance

504 mi

Time

10 hours 31 mins

Gas Cost

$47 - $92

There are 421.16 miles from Dewey to Valley in southeast direction and 504 miles (811.11 kilometers) by car, following the US-20 route.

Dewey and Valley are 10 hours 31 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Valley, NE.

Please note the time difference between Dewey, SD and Valley, NE is 1 hour. The current time in Dewey is 1:05 am and the current time in Valley is 2:05 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Valley, NE? 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 20.26 gallons of gas to cover the route between Dewey, SD and Valley, NE.

The estimated cost of gas to go from Dewey to Valley is $66.67.

During the route, an average car will release 396.88 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 $3.29 per gallon of regular gas. Price last updated on March 13, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Dewey, SD and Valley, NE

If you want to meet halfway between Dewey, SD and Valley, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.637784 and -100.245091, or 42º 38' 16.0224" N, 100º 14' 42.3276" W. This location is 252.20 miles away from Dewey, SD and Valley, NE and it would take approximately 5 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wood Lake, NE, situated 253 miles from Dewey, SD and 252 miles from Valley, NE. It would take 5 hours 31 mins to go from Dewey to Wood Lake and 5 hours 1 min to go from Valley to Wood Lake.