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

Distance from Armour, SD to Centennial, WY

Distance

558 mi

Time

10 hours 46 mins

Gas Cost

$52 - $101

There are 421.87 miles from Armour to Centennial in southwest direction and 558 miles (898.01 kilometers) by car, following the I-80 route.

Armour and Centennial are 10 hours 46 mins far apart, if you drive non-stop .

This is the fastest route from Armour, SD to Centennial, WY. The halfway point is Fairburn, SD.

Please note the time difference between Armour, SD and Centennial, WY is 1 hour. The current time in Armour is 2:08 pm and the current time in Centennial is 1:08 pm.

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Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to Centennial, WY? 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 22.41 gallons of gas to cover the route between Armour, SD and Centennial, WY.

The estimated cost of gas to go from Armour to Centennial is $73.10.

During the route, an average car will release 439.08 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 Centennial, WY

If you want to meet halfway between Armour, SD and Centennial, WY or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.643757 and -103.287834, or 43º 38' 37.5252" N, 103º 17' 16.2024" W. This location is 279.02 miles away from Armour, SD and Centennial, WY and it would take approximately 5 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Fairburn, SD, situated 312 miles from Armour, SD and 357 miles from Centennial, WY. It would take 4 hours 28 mins to go from Armour to Fairburn and 5 hours 43 mins to go from Centennial to Fairburn.