Distance between cities › USA › South Dakota › Keyapaha, SD › Distance from Keyapaha to Lamar Book Hotels

Distance from Keyapaha, SD to Lamar, IN

Distance

940 mi

Time

18 hours 25 mins

Gas Cost

$88 - $170

There are 775.51 miles from Keyapaha to Lamar in southeast direction and 940 miles (1,512.78 kilometers) by car, following the I-29 route.

Keyapaha and Lamar are 18 hours 25 mins far apart, if you drive non-stop .

This is the fastest route from Keyapaha, SD to Lamar, IN.

Keyapaha, SD and Lamar, IN are in the same time zone (CDT). Current time in both locations is 6:36 pm.

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Lowest Price Rental Cars in Keyapaha, SD

Planning on renting a car to go from Keyapaha, SD to Lamar, IN? Here there are some offers to rent a car in Keyapaha, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Keyapaha »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 37.76 gallons of gas to cover the route between Keyapaha, SD and Lamar, IN.

The estimated cost of gas to go from Keyapaha to Lamar is $123.19.

During the route, an average car will release 739.88 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 Keyapaha, SD and Lamar, IN

If you want to meet halfway between Keyapaha, SD and Lamar, IN or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 39.310799 and -94.527997, or 39º 18' 38.8764" N, 94º 31' 40.7892" W. This location is 470.17 miles away from Keyapaha, SD and Lamar, IN and it would take approximately 9 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Smithville, MO, situated 471 miles from Keyapaha, SD and 469 miles from Lamar, IN. It would take 9 hours 41 mins to go from Keyapaha to Smithville and 8 hours 56 mins to go from Lamar to Smithville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Keyapaha, SD and Lamar, IN is Kansas City, MO, situated 489 miles from Keyapaha, SD and 447 miles from Lamar, IN. It would take 9 hours 55 mins to go from Keyapaha to Kansas City and 8 hours 30 mins to go from Lamar to Kansas City.