Distance between cities › USA › Texas › San Marcos, TX › Distance from San Marcos to Armstrong

Distance from San Marcos, TX to Armstrong, TX

Distance

243 mi

Time

3 hours 45 mins

Gas Cost

$23 - $44

There are 204.78 miles from San Marcos to Armstrong in south direction and 243 miles (391.07 kilometers) by car, following the I-37 S route.

San Marcos and Armstrong are 3 hours 45 mins far apart, if you drive non-stop .

This is the fastest route from San Marcos, TX to Armstrong, TX. The halfway point is Oakville, TX.

San Marcos, TX and Armstrong, TX are in the same time zone (CDT). Current time in both locations is 7:48 pm.

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Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 9.75 gallons of gas to cover the route between San Marcos, TX and Armstrong, TX.

The estimated cost of gas to go from San Marcos to Armstrong is $31.87.

During the route, an average car will release 190.93 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 $3.27 per gallon of regular gas. Price last updated on April 18, 2024.
Read more about our CO₂ calculation.

Best Hotels In or Near Armstrong, TX

Do you have where to stay when you arrive to Armstrong, TX? Check out our hotel recommendations:

Halfway Point Between San Marcos, TX and Armstrong, TX

If you want to meet halfway between San Marcos, TX and Armstrong, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 28.451862 and -98.106247, or 28º 27' 6.7032" N, 98º 6' 22.4892" W. This location is 121.33 miles away from San Marcos, TX and Armstrong, TX and it would take approximately 1 hour 52 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Oakville, TX, situated 121 miles from San Marcos, TX and 122 miles from Armstrong, TX. It would take 1 hour 51 mins to go from San Marcos to Oakville and 2 hours 9 mins to go from Armstrong to Oakville.