Distance between cities › USA › North Carolina › Mill Spring, NC › Distance from Mill Spring to Smithboro Book Hotels

Distance from Mill Spring, NC to Smithboro, IL

Distance

629 mi

Time

11 hours 49 mins

Gas Cost

$58 - $112

There are 467.03 miles from Mill Spring to Smithboro in northwest direction and 629 miles (1,012.28 kilometers) by car, following the I-40 route.

Mill Spring and Smithboro are 11 hours 49 mins far apart, if you drive non-stop .

This is the fastest route from Mill Spring, NC to Smithboro, IL.

Please note the time difference between Mill Spring, NC and Smithboro, IL is 1 hour. The current time in Mill Spring is 11:06 pm and the current time in Smithboro is 10:06 pm.

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Lowest Price Rental Cars in Mill Spring, NC

Planning on renting a car to go from Mill Spring, NC to Smithboro, IL? Here there are some offers to rent a car in Mill Spring, NC

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mill Spring »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 25.25 gallons of gas to cover the route between Mill Spring, NC and Smithboro, IL.

The estimated cost of gas to go from Mill Spring to Smithboro is $80.91.

During the route, an average car will release 494.74 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 Mill Spring, NC and Smithboro, IL

If you want to meet halfway between Mill Spring, NC and Smithboro, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 36.182044 and -86.429628, or 36º 10' 55.3584" N, 86º 25' 46.6608" W. This location is 314.39 miles away from Mill Spring, NC and Smithboro, IL and it would take approximately 5 hours 54 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Gladeville, TN, situated 309 miles from Mill Spring, NC and 330 miles from Smithboro, IL. It would take 5 hours 56 mins to go from Mill Spring to Gladeville and 6 hours 8 mins to go from Smithboro to Gladeville.

Major City Closest to Halfway Point

The major city closest to the halfway point between Mill Spring, NC and Smithboro, IL is Nashville, TN, situated 328 miles from Mill Spring, NC and 303 miles from Smithboro, IL. It would take 6 hours 19 mins to go from Mill Spring to Nashville and 5 hours 37 mins to go from Smithboro to Nashville.