Distance from Houston, TX to San Antonio, TX

There are miles from Houston to San Antonio and miles by car.

Houston and San Antonio are far apart (by car).

This is the best Houston, TX - San Antonio, TX route.

Rental cars in Houston, TX

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Gas consumption and emissions

A car with an average MPG will need gallons of gas to cover the route between Houston, TX and San Antonio, TX.

The estimated cost of gas to go from Houston to San Antonio is .

During the route, an average car will release pounds of CO2 to the atmosphere. Your carbon footprint is pounds of CO2 per mile.

  • US market average MPG used for calculations is 21.6 MPG.
  • Average US gas price used for calculation is $2.16 per gallon of regular gas. Price last updated on May 2, 2016.
  • Read more about our CO2 calculation.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Houston, TX and San Antonio, TX in this table:

Distance type Miles Kilometers Nautical miles
Straight line distance mi km nautical mi
Driving distance mi km nautical mi

Unit conversions provided by convertnation.com

Distance to cities nearby San Antonio, TX and Houston, TX

Distance between and