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

Distance from Dewey, SD to Sumner, NE

Distance

377 mi

Time

7 hours 53 mins

Gas Cost

$35 - $68

There are 292.54 miles from Dewey to Sumner in southeast direction and 377 miles (606.72 kilometers) by car, following the N-2 route.

Dewey and Sumner are 7 hours 53 mins far apart, if you drive non-stop .

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

Please note the time difference between Dewey, SD and Sumner, NE is 1 hour. The current time in Dewey is 6:01 am and the current time in Sumner is 7:01 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Sumner, 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 15.15 gallons of gas to cover the route between Dewey, SD and Sumner, NE.

The estimated cost of gas to go from Dewey to Sumner is $49.44.

During the route, an average car will release 296.91 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 Sumner, NE

If you want to meet halfway between Dewey, SD and Sumner, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.023086 and -101.97531, or 42º 1' 23.1096" N, 101º 58' 31.116" W. This location is 188.68 miles away from Dewey, SD and Sumner, NE and it would take approximately 3 hours 56 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Ashby, NE, situated 196 miles from Dewey, SD and 182 miles from Sumner, NE. It would take 4 hours 19 mins to go from Dewey to Ashby and 3 hours 34 mins to go from Sumner to Ashby.