Driving distance from Tomball, TX to San Marcos, TX is 171 miles (274 km). How far is it from Tomball, TX to San Marcos, TX? It's a 02 hours 47 minutes drive by car. Flight distance is approximately 140 miles (225 km) and flight time from Tomball, TX to San Marcos, TX is 16 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.
To travel the distance from Tomball, 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.
Choose a place to stay while traveling from Tomball, TX to San Marcos, TX. We also offer Car Rental widget for your particular journey. There are lots of options to choose from. Give it a try.
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