Distance from Round Rock, TX to San Marcos, TX
Driving distance from Round Rock, TX to San Marcos, TX is 48 miles (78 km). How far is it from Round Rock, TX to San Marcos, TX? It's a 01 hours 00 minutes drive by car. Flight distance is approximately 46 miles (74 km) and flight time from Round Rock, TX to San Marcos, TX is 05 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.
Check returning route - Distance from San Marcos, TX to Round Rock, TX How far is it from Round Rock, TX to San Marcos, TX?
To travel the distance from Round Rock, TX to San Marcos, TX, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.
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