Distance Calculator

Distance from San Marcos to Alamo

Distance between San Marcos and Alamo is 412 kilometers (256 miles).
Driving distance from San Marcos to Alamo is 455 kilometers (283 miles).

air 412 km
air 256 miles
car 455 km
car 283 miles

Distance Map Between San Marcos and Alamo

San Marcos, Austin, United StatesAlamo, Austin, United States = 256 miles = 412 km.

How far is it between San Marcos and Alamo

San Marcos is located in United States with (29.8833,-97.9414) coordinates and Alamo is located in United States with (26.1837,-98.1231) coordinates. The calculated flying distance from San Marcos to Alamo is equal to 256 miles which is equal to 412 km.

If you want to go by car, the driving distance between San Marcos and Alamo is 455.02 km. If you ride your car with an average speed of 112 kilometers/hour (70 miles/h), travel time will be 04 hours 03 minutes. Please check the avg. speed travel time table on the right for various options.
Difference between fly and go by a car is 43 km.

City/PlaceLatitude and LongitudeGPS Coordinates
San Marcos 29.8833, -97.9414 29° 52´ 59.7720'' N
97° 56´ 29.0040'' W
Alamo 26.1837, -98.1231 26° 11´ 1.2840'' N
98° 7´ 23.0160'' W

Estimated Travel Time Between San Marcos and Alamo

Average SpeedTravel Time
30 mph (48 km/h) 09 hours 28 minutes
40 mph (64 km/h) 07 hours 06 minutes
50 mph (80 km/h) 05 hours 41 minutes
60 mph (97 km/h) 04 hours 41 minutes
70 mph (112 km/h) 04 hours 03 minutes
75 mph (120 km/h) 03 hours 47 minutes
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