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

Distance from Armour, SD to McGregor, IA

Distance

428 mi

Time

8 hours 22 mins

Gas Cost

$40 - $78

There are 361.53 miles from Armour to McGregor in east direction and 428 miles (688.80 kilometers) by car, following the I-90 route.

Armour and McGregor are 8 hours 22 mins far apart, if you drive non-stop .

This is the fastest route from Armour, SD to McGregor, IA.

Armour, SD and McGregor, IA are in the same time zone (CDT). Current time in both locations is 11:44 am.

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Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to McGregor, IA? 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 17.18 gallons of gas to cover the route between Armour, SD and McGregor, IA.

The estimated cost of gas to go from Armour to McGregor is $56.03.

During the route, an average car will release 336.54 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 McGregor, IA

If you want to meet halfway between Armour, SD and McGregor, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.652736 and -94.843106, or 43º 39' 9.8496" N, 94º 50' 35.1816" W. This location is 213.86 miles away from Armour, SD and McGregor, IA and it would take approximately 4 hours 11 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Alpha, MN, situated 212 miles from Armour, SD and 218 miles from McGregor, IA. It would take 3 hours 45 mins to go from Armour to Alpha and 4 hours 41 mins to go from McGregor to Alpha.