Distance between cities › USA › Texas › Sinton, TX › Distance from Sinton to Avoca Book Hotels

Distance from Sinton, TX to Avoca, TX

Distance

428 mi

Time

7 hours 43 mins

Gas Cost

$39 - $76

There are 358.59 miles from Sinton to Avoca in northwest direction and 428 miles (688.80 kilometers) by car, following the I-37 route.

Sinton and Avoca are 7 hours 43 mins far apart, if you drive non-stop .

This is the fastest route from Sinton, TX to Avoca, TX. The halfway point is Fredericksburg, TX.

Sinton, TX and Avoca, TX are in the same time zone (CDT). Current time in both locations is 12:53 am.

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Lowest Price Rental Cars in Sinton, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sinton »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 17.20 gallons of gas to cover the route between Sinton, TX and Avoca, TX.

The estimated cost of gas to go from Sinton to Avoca is $55.15.

During the route, an average car will release 337.05 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 Sinton, TX and Avoca, TX

If you want to meet halfway between Sinton, TX and Avoca, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 30.394991 and -98.950150, or 30º 23' 41.9676" N, 98º 57' 0.54" W. This location is 214.18 miles away from Sinton, TX and Avoca, TX and it would take approximately 3 hours 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 Fredericksburg, TX, situated 198 miles from Sinton, TX and 217 miles from Avoca, TX. It would take 3 hours 14 mins to go from Sinton to Fredericksburg and 4 hours 27 mins to go from Avoca to Fredericksburg.