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

Distance from Royal, IL to Simms, MT

Distance

1,533 mi

Time

1 day 3 hours

Gas Cost

$143 - $278

There are 1,289.24 miles from Royal to Simms in northwest direction and 1,533 miles (2,467.12 kilometers) by car, following the I-94 route.

Royal and Simms are 1 day 3 hours far apart, if you drive non-stop .

This is the fastest route from Royal, IL to Simms, MT.

Please note the time difference between Royal, IL and Simms, MT is 1 hour. The current time in Royal is 10:50 pm and the current time in Simms is 9:50 pm.

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Lowest Price Rental Cars in Royal, IL

Planning on renting a car to go from Royal, IL to Simms, MT? 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 61.56 gallons of gas to cover the route between Royal, IL and Simms, MT.

The estimated cost of gas to go from Royal to Simms is $200.81.

During the route, an average car will release 1,206.09 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 Simms, MT

If you want to meet halfway between Royal, IL and Simms, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.916997 and -97.976502, or 46º 55' 1.1892" N, 97º 58' 35.4072" W. This location is 766.43 miles away from Royal, IL and Simms, MT and it would take approximately 13 hours 37 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Valley City, ND, situated 824 miles from Royal, IL and 709 miles from Simms, MT. It would take 14 hours 58 mins to go from Royal to Valley City and 12 hours 19 mins to go from Simms to Valley City.