Distance between cities › USA › Illinois › Royal, IL › Distance from Royal to Okaton Book Hotels

Distance from Royal, IL to Okaton, SD

Distance

872 mi

Time

15 hours 11 mins

Gas Cost

$81 - $158

There are 709.40 miles from Royal to Okaton in northwest direction and 872 miles (1,403.35 kilometers) by car, following the I-90 route.

Royal and Okaton are 15 hours 11 mins far apart, if you drive non-stop .

This is the fastest route from Royal, IL to Okaton, SD.

Royal, IL and Okaton, SD are in the same time zone (CDT). Current time in both locations is 2:23 pm.

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Lowest Price Rental Cars in Royal, IL

Planning on renting a car to go from Royal, IL to Okaton, SD? Here there are some offers to rent a car in Royal, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Royal »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 35.03 gallons of gas to cover the route between Royal, IL and Okaton, SD.

The estimated cost of gas to go from Royal to Okaton is $114.28.

During the route, an average car will release 686.41 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 Royal, IL and Okaton, SD

If you want to meet halfway between Royal, IL and Okaton, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.496795 and -94.731959, or 41º 29' 48.462" N, 94º 43' 55.0524" W. This location is 436.19 miles away from Royal, IL and Okaton, SD and it would take approximately 7 hours 35 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Anita, IA, situated 440 miles from Royal, IL and 441 miles from Okaton, SD. It would take 8 hours 3 mins to go from Royal to Anita and 7 hours 21 mins to go from Okaton to Anita.