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

Distance from Dewey, SD to Ridgeway, SC

Distance

1,729 mi

Time

1 day 8 hours

Gas Cost

$161 - $313

There are 1,388.31 miles from Dewey to Ridgeway in southeast direction and 1,729 miles (2,782.56 kilometers) by car, following the I-80 route.

Dewey and Ridgeway are 1 day 8 hours far apart, if you drive non-stop .

This is the fastest route from Dewey, SD to Ridgeway, SC. The halfway point is Nelson, MO.

Please note the time difference between Dewey, SD and Ridgeway, SC is 2 hours. The current time in Dewey is 7:22 am and the current time in Ridgeway is 9:22 am.

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Lowest Price Rental Cars in Dewey, SD

Planning on renting a car to go from Dewey, SD to Ridgeway, SC? 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 69.46 gallons of gas to cover the route between Dewey, SD and Ridgeway, SC.

The estimated cost of gas to go from Dewey to Ridgeway is $226.57.

During the route, an average car will release 1,360.80 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 Ridgeway, SC

If you want to meet halfway between Dewey, SD and Ridgeway, SC or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.967983 and -93.024818, or 38º 58' 4.7388" N, 93º 1' 29.3448" W. This location is 864.74 miles away from Dewey, SD and Ridgeway, SC and it would take approximately 16 hours 26 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Nelson, MO, situated 882 miles from Dewey, SD and 936 miles from Ridgeway, SC. It would take 13 hours 14 mins to go from Dewey to Nelson and 14 hours 24 mins to go from Ridgeway to Nelson.