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

Distance from Royal, IL to Smithwick, SD

Distance

1,061 mi

Time

18 hours 31 mins

Gas Cost

$99 - $192

There are 813.40 miles from Royal to Smithwick in northwest direction and 1,061 miles (1,707.51 kilometers) by car, following the I-90 route.

Royal and Smithwick are 18 hours 31 mins far apart, if you drive non-stop .

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

Please note the time difference between Royal, IL and Smithwick, SD is 1 hour. The current time in Royal is 3:44 pm and the current time in Smithwick is 2:44 pm.

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Lowest Price Rental Cars in Royal, IL

Planning on renting a car to go from Royal, IL to Smithwick, 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 42.61 gallons of gas to cover the route between Royal, IL and Smithwick, SD.

The estimated cost of gas to go from Royal to Smithwick is $138.99.

During the route, an average car will release 834.78 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 Smithwick, SD

If you want to meet halfway between Royal, IL and Smithwick, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 41.951483 and -96.103394, or 41º 57' 5.3388" N, 96º 6' 12.2184" W. This location is 530.47 miles away from Royal, IL and Smithwick, SD and it would take approximately 9 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Blencoe, IA, situated 530 miles from Royal, IL and 533 miles from Smithwick, SD. It would take 9 hours 39 mins to go from Royal to Blencoe and 8 hours 55 mins to go from Smithwick to Blencoe.