Distance between cities › USA › Ohio › Marengo, OH › Distance from Marengo to Dewey Book Hotels

Distance from Marengo, OH to Dewey, SD

Distance

1,316 mi

Time

1 day

Gas Cost

$123 - $239

There are 1,108.70 miles from Marengo to Dewey in west direction and 1,316 miles (2,117.90 kilometers) by car, following the I-90 route.

Marengo and Dewey are 1 day far apart, if you drive non-stop .

This is the fastest route from Marengo, OH to Dewey, SD.

Please note the time difference between Marengo, OH and Dewey, SD is 2 hours. The current time in Marengo is 3:13 pm and the current time in Dewey is 1:13 pm.

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Lowest Price Rental Cars in Marengo, OH

Planning on renting a car to go from Marengo, OH to Dewey, SD? Here there are some offers to rent a car in Marengo, OH

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Marengo »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 52.87 gallons of gas to cover the route between Marengo, OH and Dewey, SD.

The estimated cost of gas to go from Marengo to Dewey is $172.45.

During the route, an average car will release 1,035.75 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 Marengo, OH and Dewey, SD

If you want to meet halfway between Marengo, OH and Dewey, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.691018 and -92.729061, or 43º 41' 27.6648" N, 92º 43' 44.6196" W. This location is 658.18 miles away from Marengo, OH and Dewey, SD and it would take approximately 12 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Elkton, MN, situated 683 miles from Marengo, OH and 637 miles from Dewey, SD. It would take 13 hours 24 mins to go from Marengo to Elkton and 11 hours 23 mins to go from Dewey to Elkton.

Major City Closest to Halfway Point

The major city closest to the halfway point between Marengo, OH and Dewey, SD is Rochester, MN, situated 664 miles from Marengo, OH and 664 miles from Dewey, SD. It would take 13 hours 4 mins to go from Marengo to Rochester and 11 hours 51 mins to go from Dewey to Rochester.