Distance between cities › USA › South Dakota › Custer, SD › Distance from Custer to Alpena Book Hotels

Distance from Custer, SD to Alpena, SD

Distance

332 mi

Time

5 hours 52 mins

Gas Cost

$29 - $57

There are 261.75 miles from Custer to Alpena in east direction and 332 miles (534.30 kilometers) by car, following the I-90 and US-14 route.

Custer and Alpena are 5 hours 52 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Alpena, SD. The halfway point is Okaton, SD.

Please note the time difference between Custer, SD and Alpena, SD is 1 hour. The current time in Custer is 7:06 pm and the current time in Alpena is 8:06 pm.

Any questions or tips to share?

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

Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Alpena, SD? Here there are some offers to rent a car in Custer, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Custer »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.34 gallons of gas to cover the route between Custer, SD and Alpena, SD.

The estimated cost of gas to go from Custer to Alpena is $41.31.

During the route, an average car will release 261.35 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 $3.10 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Custer, SD and Alpena, SD

If you want to meet halfway between Custer, SD and Alpena, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.892239 and -100.896645, or 43º 53' 32.0604" N, 100º 53' 47.922" W. This location is 166.08 miles away from Custer, SD and Alpena, SD and it would take approximately 2 hours 56 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Okaton, SD, situated 167 miles from Custer, SD and 165 miles from Alpena, SD. It would take 2 hours 31 mins to go from Custer to Okaton and 2 hours 35 mins to go from Alpena to Okaton.