Distance between cities › USA › South Dakota › Armour, SD › Distance from Armour to Harmony Book Hotels

Distance from Armour, SD to Harmony, IN

Distance

797 mi

Time

15 hours

Gas Cost

$74 - $144

There are 639.33 miles from Armour to Harmony in southeast direction and 797 miles (1,282.65 kilometers) by car, following the I-80 route.

Armour and Harmony are 15 hours far apart, if you drive non-stop .

This is the fastest route from Armour, SD to Harmony, IN.

Please note the time difference between Armour, SD and Harmony, IN is 1 hour. The current time in Armour is 8:38 am and the current time in Harmony is 9:38 am.

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Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to Harmony, IN? Here there are some offers to rent a car in Armour, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Armour »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 31.99 gallons of gas to cover the route between Armour, SD and Harmony, IN.

The estimated cost of gas to go from Armour to Harmony is $104.35.

During the route, an average car will release 626.75 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 Armour, SD and Harmony, IN

If you want to meet halfway between Armour, SD and Harmony, IN or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.695737 and -92.631836, or 41º 41' 44.6532" N, 92º 37' 54.6096" W. This location is 398.28 miles away from Armour, SD and Harmony, IN and it would take approximately 7 hours 30 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Malcom, IA, situated 401 miles from Armour, SD and 398 miles from Harmony, IN. It would take 7 hours 33 mins to go from Armour to Malcom and 7 hours 33 mins to go from Harmony to Malcom.