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

Distance from Armour, SD to Frankfort, SD

Distance

123 mi

Time

2 hours 43 mins

Gas Cost

$11 - $21

There are 107.67 miles from Armour to Frankfort in north direction and 123 miles (197.95 kilometers) by car, following the US-281 route.

Armour and Frankfort are 2 hours 43 mins far apart, if you drive non-stop .

This is the fastest route from Armour, SD to Frankfort, SD. The halfway point is Alpena, SD.

Armour, SD and Frankfort, SD are in the same time zone (CDT). Current time in both locations is 9:01 am.

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Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to Frankfort, SD? 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 4.94 gallons of gas to cover the route between Armour, SD and Frankfort, SD.

The estimated cost of gas to go from Armour to Frankfort is $15.47.

During the route, an average car will release 96.70 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 $3.14 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Armour, SD and Frankfort, SD

If you want to meet halfway between Armour, SD and Frankfort, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.179367 and -98.454010, or 44º 10' 45.7212" N, 98º 27' 14.436" W. This location is 61.45 miles away from Armour, SD and Frankfort, SD and it would take approximately 1 hour 21 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alpena, SD, situated 68 miles from Armour, SD and 62 miles from Frankfort, SD. It would take 1 hour 35 mins to go from Armour to Alpena and 1 hour 42 mins to go from Frankfort to Alpena.