Distance Round Rock San Marcos
How far is it from Round Rock to San Marcos?
The calculated distance (air line) between Round Rock and San Marcos is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to San Marcos is certainly longer, as only the direct route (as the crow flies) between Round Rock and San Marcos has been calculated here.
Air Line
Round Rock to San Marcos
Air line (approximately)
46 miles
74 kilometers
40 nautical miles
Distance Calculator
