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

Distance from Royal, IL to Augusta, MO

Distance

243 mi

Time

4 hours 50 mins

Gas Cost

$23 - $44

There are 191.48 miles from Royal to Augusta in southwest direction and 243 miles (391.07 kilometers) by car, following the I-57 route.

Royal and Augusta are 4 hours 50 mins far apart, if you drive non-stop .

This is the fastest route from Royal, IL to Augusta, MO.

Royal, IL and Augusta, MO are in the same time zone (CDT). Current time in both locations is 11:40 am.

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Lowest Price Rental Cars in Royal, IL

Planning on renting a car to go from Royal, IL to Augusta, MO? 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 9.74 gallons of gas to cover the route between Royal, IL and Augusta, MO.

The estimated cost of gas to go from Royal to Augusta is $31.78.

During the route, an average car will release 190.89 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 Augusta, MO

If you want to meet halfway between Royal, IL and Augusta, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.97434 and -89.000556, or 38º 58' 27.624" N, 89º 0' 2.0016" W. This location is 121.30 miles away from Royal, IL and Augusta, MO and it would take approximately 2 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brownstown, IL, situated 125 miles from Royal, IL and 119 miles from Augusta, MO. It would take 2 hours 25 mins to go from Royal to Brownstown and 2 hours 34 mins to go from Augusta to Brownstown.