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

Distance from Dewey, SD to Ames, NE

Distance

494 mi

Time

10 hours 21 mins

Gas Cost

$46 - $90

There are 404.05 miles from Dewey to Ames in southeast direction and 494 miles (795.02 kilometers) by car, following the US-20 route.

Dewey and Ames are 10 hours 21 mins far apart, if you drive non-stop .

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

Please note the time difference between Dewey, SD and Ames, NE is 1 hour. The current time in Dewey is 3:10 am and the current time in Ames is 4:10 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Ames, 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 19.85 gallons of gas to cover the route between Dewey, SD and Ames, NE.

The estimated cost of gas to go from Dewey to Ames is $64.76.

During the route, an average car will release 388.98 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 Ames, NE

If you want to meet halfway between Dewey, SD and Ames, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.683664 and -100.326596, or 42º 41' 1.1904" N, 100º 19' 35.7456" W. This location is 247.19 miles away from Dewey, SD and Ames, NE and it would take approximately 5 hours 10 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 242 miles from Ames, NE. It would take 5 hours 31 mins to go from Dewey to Wood Lake and 4 hours 50 mins to go from Ames to Wood Lake.