Distance between cities › USA › Texas › Smiley, TX › Distance from Smiley to State Line Book Hotels

Distance from Smiley, TX to State Line, MS

Distance

654 mi

Time

12 hours 27 mins

Gas Cost

$60 - $116

There are 566.20 miles from Smiley to State Line in northeast direction and 654 miles (1,052.51 kilometers) by car, following the I-10 route.

Smiley and State Line are 12 hours 27 mins far apart, if you drive non-stop .

This is the fastest route from Smiley, TX to State Line, MS.

Smiley, TX and State Line, MS are in the same time zone (CDT). Current time in both locations is 9:43 pm.

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Lowest Price Rental Cars in Smiley, TX

Planning on renting a car to go from Smiley, TX to State Line, MS? Here there are some offers to rent a car in Smiley, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Smiley »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 26.26 gallons of gas to cover the route between Smiley, TX and State Line, MS.

The estimated cost of gas to go from Smiley to State Line is $84.13.

During the route, an average car will release 514.46 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 Smiley, TX and State Line, MS

If you want to meet halfway between Smiley, TX and State Line, MS or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 30.246576 and -92.847272, or 30º 14' 47.6736" N, 92º 50' 50.1792" W. This location is 326.92 miles away from Smiley, TX and State Line, MS and it would take approximately 6 hours 13 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Welsh, LA, situated 328 miles from Smiley, TX and 328 miles from State Line, MS. It would take 6 hours 12 mins to go from Smiley to Welsh and 6 hours 18 mins to go from State Line to Welsh.