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

Distance from Custer, SD to Monroe, NE

Distance

466 mi

Time

8 hours 51 mins

Gas Cost

$43 - $84

There are 343.60 miles from Custer to Monroe in southeast direction and 466 miles (749.95 kilometers) by car, following the I-90 and US-14 route.

Custer and Monroe are 8 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Monroe, NE. The halfway point is Valentine, NE.

Please note the time difference between Custer, SD and Monroe, NE is 1 hour. The current time in Custer is 7:11 am and the current time in Monroe is 8:11 am.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Monroe, 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 18.70 gallons of gas to cover the route between Custer, SD and Monroe, NE.

The estimated cost of gas to go from Custer to Monroe is $60.98.

During the route, an average car will release 366.28 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 Monroe, NE

If you want to meet halfway between Custer, SD and Monroe, NE or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.895462 and -100.644981, or 42º 53' 43.6632" N, 100º 38' 41.9316" W. This location is 232.76 miles away from Custer, SD and Monroe, NE and it would take approximately 4 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Valentine, NE, situated 224 miles from Custer, SD and 213 miles from Monroe, NE. It would take 4 hours 4 mins to go from Custer to Valentine and 3 hours 28 mins to go from Monroe to Valentine.