Distance between cities › USA › Illinois › Walnut, IL › Distance from Walnut to Mattoon Book Hotels

Distance from Walnut, IL to Mattoon, IL

Distance

199 mi

Time

3 hours 51 mins

Gas Cost

$21 - $40

There are 156.96 miles from Walnut to Mattoon in southeast direction and 199 miles (320.26 kilometers) by car, following the I-39 and US-51 route.

Walnut and Mattoon are 3 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Mattoon, IL. The halfway point is Bloomington, IL.

Walnut, IL and Mattoon, IL are in the same time zone (CDT). Current time in both locations is 10:37 pm.

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Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Mattoon, IL? Here there are some offers to rent a car in Walnut, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Walnut »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 7.99 gallons of gas to cover the route between Walnut, IL and Mattoon, IL.

The estimated cost of gas to go from Walnut to Mattoon is $29.12.

During the route, an average car will release 156.48 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 $3.65 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Walnut, IL and Mattoon, IL

If you want to meet halfway between Walnut, IL and Mattoon, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.464111 and -89.022324, or 40º 27' 50.7996" N, 89º 1' 20.3664" W. This location is 99.44 miles away from Walnut, IL and Mattoon, IL and it would take approximately 1 hour 55 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Bloomington, IL, situated 100 miles from Walnut, IL and 98 miles from Mattoon, IL. It would take 2 hours 1 min to go from Walnut to Bloomington and 1 hour 42 mins to go from Mattoon to Bloomington.