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

Distance from Walnut, IL to Sullivan, IL

Distance

175 mi

Time

3 hours 42 mins

Gas Cost

$18 - $35

There are 144.78 miles from Walnut to Sullivan in southeast direction and 175 miles (281.64 kilometers) by car, following the I-39 and US-51 route.

Walnut and Sullivan are 3 hours 42 mins far apart, if you drive non-stop .

This is the fastest route from Walnut, IL to Sullivan, IL. The halfway point is El Paso, IL.

Walnut, IL and Sullivan, IL are in the same time zone (CDT). Current time in both locations is 10:34 pm.

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Lowest Price Rental Cars in Walnut, IL

Planning on renting a car to go from Walnut, IL to Sullivan, 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 7.03 gallons of gas to cover the route between Walnut, IL and Sullivan, IL.

The estimated cost of gas to go from Walnut to Sullivan is $25.64.

During the route, an average car will release 137.76 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 Sullivan, IL

If you want to meet halfway between Walnut, IL and Sullivan, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.707691 and -89.029953, or 40º 42' 27.6876" N, 89º 1' 47.8308" W. This location is 87.54 miles away from Walnut, IL and Sullivan, IL and it would take approximately 1 hour 51 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is El Paso, IL, situated 86 miles from Walnut, IL and 95 miles from Sullivan, IL. It would take 1 hour 32 mins to go from Walnut to El Paso and 1 hour 58 mins to go from Sullivan to El Paso.