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

Distance from Armour, SD to Ardmore, SD

Distance

369 mi

Time

6 hours 41 mins

Gas Cost

$33 - $64

There are 268.30 miles from Armour to Ardmore in west direction and 369 miles (593.85 kilometers) by car, following the I-90 route.

Armour and Ardmore are 6 hours 41 mins far apart, if you drive non-stop .

This is the fastest route from Armour, SD to Ardmore, SD. The halfway point is Belvidere, SD.

Please note the time difference between Armour, SD and Ardmore, SD is 1 hour. The current time in Armour is 7:29 am and the current time in Ardmore is 6:29 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Armour, SD to Ardmore, SD:

Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to Ardmore, 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 14.82 gallons of gas to cover the route between Armour, SD and Ardmore, SD.

The estimated cost of gas to go from Armour to Ardmore is $46.46.

During the route, an average car will release 290.37 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 Ardmore, SD

If you want to meet halfway between Armour, SD and Ardmore, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.844719 and -101.261040, or 43º 50' 40.9884" N, 101º 15' 39.744" W. This location is 184.52 miles away from Armour, SD and Ardmore, SD and it would take approximately 3 hours 20 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Belvidere, SD, situated 177 miles from Armour, SD and 193 miles from Ardmore, SD. It would take 2 hours 32 mins to go from Armour to Belvidere and 3 hours 14 mins to go from Ardmore to Belvidere.