Distance between cities › USA › South Dakota › Iona, SD › Distance from Iona to Shallmar Book Hotels

Distance from Iona, SD to Shallmar, MD

Distance

1,328 mi

Time

1 day

Gas Cost

$124 - $241

There are 1,082.59 miles from Iona to Shallmar in southeast direction and 1,328 miles (2,137.21 kilometers) by car, following the I-90 route.

Iona and Shallmar are 1 day far apart, if you drive non-stop .

This is the fastest route from Iona, SD to Shallmar, MD.

Please note the time difference between Iona, SD and Shallmar, MD is 1 hour. The current time in Iona is 11:39 am and the current time in Shallmar is 12:39 pm.

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Lowest Price Rental Cars in Iona, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Iona »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 53.32 gallons of gas to cover the route between Iona, SD and Shallmar, MD.

The estimated cost of gas to go from Iona to Shallmar is $173.94.

During the route, an average car will release 1,044.74 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 Iona, SD and Shallmar, MD

If you want to meet halfway between Iona, SD and Shallmar, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.516222 and -88.976324, or 42º 30' 58.3992" N, 88º 58' 34.7664" W. This location is 663.89 miles away from Iona, SD and Shallmar, MD and it would take approximately 12 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Beloit, WI, situated 651 miles from Iona, SD and 679 miles from Shallmar, MD. It would take 11 hours 53 mins to go from Iona to Beloit and 13 hours 5 mins to go from Shallmar to Beloit.

Major City Closest to Halfway Point

The major city closest to the halfway point between Iona, SD and Shallmar, MD is Rockford, IL, situated 673 miles from Iona, SD and 669 miles from Shallmar, MD. It would take 12 hours 16 mins to go from Iona to Rockford and 12 hours 56 mins to go from Shallmar to Rockford.