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

Distance from Armour, SD to Gravity, IA

Distance

331 mi

Time

6 hours 37 mins

Gas Cost

$31 - $60

There are 255.73 miles from Armour to Gravity in southeast direction and 331 miles (532.69 kilometers) by car, following the I-29 route.

Armour and Gravity are 6 hours 37 mins far apart, if you drive non-stop .

This is the fastest route from Armour, SD to Gravity, IA. The halfway point is Sloan, IA.

Armour, SD and Gravity, IA are in the same time zone (CDT). Current time in both locations is 10:06 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Armour, SD

Planning on renting a car to go from Armour, SD to Gravity, 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 13.30 gallons of gas to cover the route between Armour, SD and Gravity, IA.

The estimated cost of gas to go from Armour to Gravity is $43.37.

During the route, an average car will release 260.50 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 Gravity, IA

If you want to meet halfway between Armour, SD and Gravity, IA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.237202 and -96.244919, or 42º 14' 13.9272" N, 96º 14' 41.7084" W. This location is 165.54 miles away from Armour, SD and Gravity, IA and it would take approximately 3 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Sloan, IA, situated 159 miles from Armour, SD and 170 miles from Gravity, IA. It would take 3 hours 8 mins to go from Armour to Sloan and 3 hours 2 mins to go from Gravity to Sloan.