Distance between cities › USA › Ohio › Troy, OH › Distance from Troy to Walnut Book Hotels

Distance from Troy, OH to Walnut, IL

Distance

391 mi

Time

7 hours 37 mins

Gas Cost

$36 - $70

There are 300.72 miles from Troy to Walnut in northwest direction and 391 miles (629.25 kilometers) by car, following the I-74 route.

Troy and Walnut are 7 hours 37 mins far apart, if you drive non-stop .

This is the fastest route from Troy, OH to Walnut, IL.

Please note the time difference between Troy, OH and Walnut, IL is 1 hour. The current time in Troy is 1:21 am and the current time in Walnut is 12:21 am.

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Lowest Price Rental Cars in Troy, OH

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Troy »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 15.71 gallons of gas to cover the route between Troy, OH and Walnut, IL.

The estimated cost of gas to go from Troy to Walnut is $50.33.

During the route, an average car will release 307.73 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Troy, OH and Walnut, IL

If you want to meet halfway between Troy, OH and Walnut, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.127633 and -87.311962, or 40º 7' 39.4788" N, 87º 18' 43.0632" W. This location is 195.55 miles away from Troy, OH and Walnut, IL and it would take approximately 3 hours 48 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Veedersburg, IN, situated 188 miles from Troy, OH and 207 miles from Walnut, IL. It would take 3 hours 44 mins to go from Troy to Veedersburg and 3 hours 59 mins to go from Walnut to Veedersburg.