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

Distance from Dewey, SD to Roca, NE

Distance

550 mi

Time

10 hours 32 mins

Gas Cost

$51 - $100

There are 427.05 miles from Dewey to Roca in southeast direction and 550 miles (885.14 kilometers) by car, following the I-80 route.

Dewey and Roca are 10 hours 32 mins far apart, if you drive non-stop .

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

Please note the time difference between Dewey, SD and Roca, NE is 1 hour. The current time in Dewey is 4:33 am and the current time in Roca is 5:33 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Roca, 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 22.07 gallons of gas to cover the route between Dewey, SD and Roca, NE.

The estimated cost of gas to go from Dewey to Roca is $72.

During the route, an average car will release 432.45 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 Roca, NE

If you want to meet halfway between Dewey, SD and Roca, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.115427 and -101.297297, or 41º 6' 55.5372" N, 101º 17' 50.2692" W. This location is 274.80 miles away from Dewey, SD and Roca, NE and it would take approximately 5 hours 16 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Paxton, NE, situated 282 miles from Dewey, SD and 267 miles from Roca, NE. It would take 6 hours 1 min to go from Dewey to Paxton and 4 hours 34 mins to go from Roca to Paxton.