Distance from Houston, TX to San Antonio, TX is 199Miles or 321 Km. You can get this distance about 2 hours 53 mins. If you want to planning travel with plane for 190 Miles or 305 Km, You can get this distance about 54 mins .
A car with an average MPG will needs 9.21 gallons of gas to get the route between these points.
The estimated cost of gas to get between Houston, TX and San Antonio, TX is $20.91.
During the route, an average car will release 180.44 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.
* Average US MPG used for calculations is 21.6 MPG.
* Average US gas price used for calculation is 2.27 per gallon.
* Coordinates of Houston, TX is 29.7604267, -95.3698028 and coordinates of San Antonio, TX is 29.4241576, -98.4936411