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

Distance from Custer, SD to Mills, NE

Distance

311 mi

Time

5 hours 58 mins

Gas Cost

$29 - $56

There are 216.38 miles from Custer to Mills in southeast direction and 311 miles (500.51 kilometers) by car, following the I-90 and US-14 route.

Custer and Mills are 5 hours 58 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Mills, NE. The halfway point is Merriman, NE.

Please note the time difference between Custer, SD and Mills, NE is 1 hour. The current time in Custer is 7:15 am and the current time in Mills is 8:15 am.

Any questions or tips to share?

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

Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Mills, NE? 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 12.49 gallons of gas to cover the route between Custer, SD and Mills, NE.

The estimated cost of gas to go from Custer to Mills is $40.73.

During the route, an average car will release 244.63 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 Custer, SD and Mills, NE

If you want to meet halfway between Custer, SD and Mills, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.880852 and -101.860664, or 42º 52' 51.0672" N, 101º 51' 38.3904" W. This location is 155.46 miles away from Custer, SD and Mills, NE and it would take approximately 2 hours 59 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Merriman, NE, situated 163 miles from Custer, SD and 130 miles from Mills, NE. It would take 3 hours 5 mins to go from Custer to Merriman and 2 hours 15 mins to go from Mills to Merriman.