Distance between cities › USA › South Dakota › Madison, SD › Distance from Madison to Keymar Book Hotels

Distance from Madison, SD to Keymar, MD

Distance

1,286 mi

Time

23 hours 46 mins

Gas Cost

$120 - $233

There are 1,065.05 miles from Madison to Keymar in southeast direction and 1,286 miles (2,069.62 kilometers) by car, following the I-90 route.

Madison and Keymar are 23 hours 46 mins far apart, if you drive non-stop .

This is the fastest route from Madison, SD to Keymar, MD.

Please note the time difference between Madison, SD and Keymar, MD is 1 hour. The current time in Madison is 5:09 am and the current time in Keymar is 6:09 am.

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Lowest Price Rental Cars in Madison, SD

Planning on renting a car to go from Madison, SD to Keymar, MD? Here there are some offers to rent a car in Madison, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Madison »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 51.64 gallons of gas to cover the route between Madison, SD and Keymar, MD.

The estimated cost of gas to go from Madison to Keymar is $168.44.

During the route, an average car will release 1,011.65 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 Madison, SD and Keymar, MD

If you want to meet halfway between Madison, SD and Keymar, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.612117 and -87.479608, or 41º 36' 43.6212" N, 87º 28' 46.5888" W. This location is 642.86 miles away from Madison, SD and Keymar, MD and it would take approximately 11 hours 53 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Hammond, IN, situated 643 miles from Madison, SD and 649 miles from Keymar, MD. It would take 11 hours 48 mins to go from Madison to Hammond and 12 hours 8 mins to go from Keymar to Hammond.

Major City Closest to Halfway Point

The major city closest to the halfway point between Madison, SD and Keymar, MD is Chicago, IL, situated 617 miles from Madison, SD and 669 miles from Keymar, MD. It would take 11 hours 18 mins to go from Madison to Chicago and 12 hours 32 mins to go from Keymar to Chicago.