Distance between cities › USA › Texas › Comstock, TX › Distance from Comstock to Caldwell Book Hotels

Distance from Comstock, TX to Caldwell, TX

Distance

334 mi

Time

6 hours 13 mins

Gas Cost

$31 - $59

There are 274.13 miles from Comstock to Caldwell in northeast direction and 334 miles (537.52 kilometers) by car, following the TX 21 route.

Comstock and Caldwell are 6 hours 13 mins far apart, if you drive non-stop .

This is the fastest route from Comstock, TX to Caldwell, TX.

Comstock, TX and Caldwell, TX are in the same time zone (CDT). Current time in both locations is 5:22 pm.

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Lowest Price Rental Cars in Comstock, TX

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Comstock »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 13.40 gallons of gas to cover the route between Comstock, TX and Caldwell, TX.

The estimated cost of gas to go from Comstock to Caldwell is $42.96.

During the route, an average car will release 262.52 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 Comstock, TX and Caldwell, TX

If you want to meet halfway between Comstock, TX and Caldwell, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 29.374565 and -98.772343, or 29º 22' 28.434" N, 98º 46' 20.4348" W. This location is 166.82 miles away from Comstock, TX and Caldwell, TX and it would take approximately 3 hours 6 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is La Coste, TX, situated 165 miles from Comstock, TX and 175 miles from Caldwell, TX. It would take 3 hours 12 mins to go from Comstock to La Coste and 3 hours 12 mins to go from Caldwell to La Coste.

Major City Closest to Halfway Point

The major city closest to the halfway point between Comstock, TX and Caldwell, TX is San Antonio, TX, situated 184 miles from Comstock, TX and 150 miles from Caldwell, TX. It would take 3 hours 33 mins to go from Comstock to San Antonio and 2 hours 45 mins to go from Caldwell to San Antonio.