Distance between cities › USA › South Dakota › Herreid, SD › Distance from Herreid to Harmans Book Hotels

Distance from Herreid, SD to Harmans, MD

Distance

1,504 mi

Time

1 day 4 hours

Gas Cost

$140 - $272

There are 1,271.16 miles from Herreid to Harmans in southeast direction and 1,504 miles (2,420.45 kilometers) by car, following the I-94 route.

Herreid and Harmans are 1 day 4 hours far apart, if you drive non-stop .

This is the fastest route from Herreid, SD to Harmans, MD.

Please note the time difference between Herreid, SD and Harmans, MD is 1 hour. The current time in Herreid is 3:30 pm and the current time in Harmans is 4:30 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Herreid, SD to Harmans, MD:

Lowest Price Rental Cars in Herreid, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Herreid »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 60.38 gallons of gas to cover the route between Herreid, SD and Harmans, MD.

The estimated cost of gas to go from Herreid to Harmans is $196.97.

During the route, an average car will release 1,183.01 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 Herreid, SD and Harmans, MD

If you want to meet halfway between Herreid, SD and Harmans, MD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.204727 and -88.699487, or 42º 12' 17.0172" N, 88º 41' 58.1532" W. This location is 751.76 miles away from Herreid, SD and Harmans, MD and it would take approximately 14 hours 6 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Garden Prairie, IL, situated 741 miles from Herreid, SD and 767 miles from Harmans, MD. It would take 14 hours to go from Herreid to Garden Prairie and 14 hours 28 mins to go from Harmans to Garden Prairie.

Major City Closest to Halfway Point

The major city closest to the halfway point between Herreid, SD and Harmans, MD is Rockford, IL, situated 731 miles from Herreid, SD and 786 miles from Harmans, MD. It would take 13 hours 51 mins to go from Herreid to Rockford and 14 hours 48 mins to go from Harmans to Rockford.