Distance between cities › USA › Illinois › Gridley, IL › Distance from Gridley to Roby Book Hotels

Distance from Gridley, IL to Roby, MO

Distance

342 mi

Time

6 hours 36 mins

Gas Cost

$32 - $62

There are 283.19 miles from Gridley to Roby in southwest direction and 342 miles (550.40 kilometers) by car, following the I-44 and US-50 route.

Gridley and Roby are 6 hours 36 mins far apart, if you drive non-stop .

This is the fastest route from Gridley, IL to Roby, MO.

Gridley, IL and Roby, MO are in the same time zone (CDT). Current time in both locations is 1:01 am.

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Lowest Price Rental Cars in Gridley, IL

Planning on renting a car to go from Gridley, IL to Roby, MO? Here there are some offers to rent a car in Gridley, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Gridley »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.73 gallons of gas to cover the route between Gridley, IL and Roby, MO.

The estimated cost of gas to go from Gridley to Roby is $44.79.

During the route, an average car will release 269 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 Gridley, IL and Roby, MO

If you want to meet halfway between Gridley, IL and Roby, MO or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.670705 and -90.037711, or 38º 40' 14.538" N, 90º 2' 15.7596" W. This location is 170.94 miles away from Gridley, IL and Roby, MO and it would take approximately 3 hours 18 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Caseyville, IL, situated 180 miles from Gridley, IL and 165 miles from Roby, MO. It would take 3 hours 22 mins to go from Gridley to Caseyville and 3 hours 21 mins to go from Roby to Caseyville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Gridley, IL and Roby, MO is Saint Louis, MO, situated 189 miles from Gridley, IL and 154 miles from Roby, MO. It would take 3 hours 33 mins to go from Gridley to Saint Louis and 3 hours 8 mins to go from Roby to Saint Louis.