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

Distance from Custer, SD to Mars, PA

Distance

1,398 mi

Time

1 day

Gas Cost

$130 - $253

There are 1,220.90 miles from Custer to Mars in east direction and 1,398 miles (2,249.86 kilometers) by car, following the I-90 and US-14 route.

Custer and Mars are 1 day far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Mars, PA.

Please note the time difference between Custer, SD and Mars, PA is 2 hours. The current time in Custer is 2:57 am and the current time in Mars is 4:57 am.

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Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Mars, PA? 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 56.14 gallons of gas to cover the route between Custer, SD and Mars, PA.

The estimated cost of gas to go from Custer to Mars is $183.12.

During the route, an average car will release 1,099.86 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 Mars, PA

If you want to meet halfway between Custer, SD and Mars, PA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.876643 and -91.201459, or 43º 52' 35.9148" N, 91º 12' 5.2524" W. This location is 698.92 miles away from Custer, SD and Mars, PA and it would take approximately 12 hours 28 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Onalaska, WI, situated 675 miles from Custer, SD and 726 miles from Mars, PA. It would take 11 hours 36 mins to go from Custer to Onalaska and 13 hours 29 mins to go from Mars to Onalaska.