Distance between cities › USA › Texas › Austin, TX › Distance from Austin to Karnack Book Hotels

Distance from Austin, TX to Karnack, TX

Distance

304 mi

Time

5 hours 46 mins

Gas Cost

$28 - $54

There are 268 miles from Austin to Karnack in northeast direction and 304 miles (489.24 kilometers) by car, following the I-35 and US-290 route.

Austin and Karnack are 5 hours 46 mins far apart, if you drive non-stop .

This is the fastest route from Austin, TX to Karnack, TX. The halfway point is Corsicana, TX.

Austin, TX and Karnack, TX are in the same time zone (CDT). Current time in both locations is 8:15 pm.

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Lowest Price Rental Cars in Austin, TX

Planning on renting a car to go from Austin, TX to Karnack, TX? Here there are some offers to rent a car in Austin, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Austin »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 12.22 gallons of gas to cover the route between Austin, TX and Karnack, TX.

The estimated cost of gas to go from Austin to Karnack is $39.19.

During the route, an average car will release 239.50 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 $3.21 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Austin, TX and Karnack, TX

If you want to meet halfway between Austin, TX and Karnack, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 32.105923 and -96.396683, or 32º 6' 21.3228" N, 96º 23' 48.0588" W. This location is 152.19 miles away from Austin, TX and Karnack, TX and it would take approximately 2 hours 53 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Corsicana, TX, situated 156 miles from Austin, TX and 151 miles from Karnack, TX. It would take 2 hours 39 mins to go from Austin to Corsicana and 2 hours 52 mins to go from Karnack to Corsicana.