Distance between cities › USA › Illinois › Rio, IL › Distance from Rio to Grayson Book Hotels

Distance from Rio, IL to Grayson, LA

Distance

785 mi

Time

14 hours 54 mins

Gas Cost

$73 - $142

There are 633.04 miles from Rio to Grayson in south direction and 785 miles (1,263.34 kilometers) by car, following the US-67 route.

Rio and Grayson are 14 hours 54 mins far apart, if you drive non-stop .

This is the fastest route from Rio, IL to Grayson, LA.

Rio, IL and Grayson, LA are in the same time zone (CDT). Current time in both locations is 2:57 am.

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Lowest Price Rental Cars in Rio, IL

Planning on renting a car to go from Rio, IL to Grayson, LA? Here there are some offers to rent a car in Rio, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Rio »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 31.53 gallons of gas to cover the route between Rio, IL and Grayson, LA.

The estimated cost of gas to go from Rio to Grayson is $102.84.

During the route, an average car will release 617.66 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 Rio, IL and Grayson, LA

If you want to meet halfway between Rio, IL and Grayson, LA or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 36.653734 and -90.52011, or 36º 39' 13.4424" N, 90º 31' 12.396" W. This location is 392.50 miles away from Rio, IL and Grayson, LA and it would take approximately 7 hours 27 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Harviell, MO, situated 387 miles from Rio, IL and 400 miles from Grayson, LA. It would take 7 hours 23 mins to go from Rio to Harviell and 7 hours 40 mins to go from Grayson to Harviell.