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

Distance from Dewey, SD to Okaton, SD

Distance

216 mi

Time

4 hours 17 mins

Gas Cost

$19 - $38

There are 159.17 miles from Dewey to Okaton in east direction and 216 miles (347.62 kilometers) by car, following the I-90 and US-14 route.

Dewey and Okaton are 4 hours 17 mins far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Okaton, SD.

Please note the time difference between Dewey, SD and Okaton, SD is 1 hour. The current time in Dewey is 3:03 am and the current time in Okaton is 4:03 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Okaton, SD? 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 8.69 gallons of gas to cover the route between Dewey, SD and Okaton, SD.

The estimated cost of gas to go from Dewey to Okaton is $27.24.

During the route, an average car will release 170.23 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 $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Dewey, SD and Okaton, SD

If you want to meet halfway between Dewey, SD and Okaton, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.103429 and -102.761917, or 44º 6' 12.3444" N, 102º 45' 42.9012" W. This location is 108.17 miles away from Dewey, SD and Okaton, SD and it would take approximately 2 hours 8 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is New Underwood, SD, situated 112 miles from Dewey, SD and 106 miles from Okaton, SD. It would take 2 hours 40 mins to go from Dewey to New Underwood and 1 hour 42 mins to go from Okaton to New Underwood.