Distance from Fort Sam Houston, TX to Kirby, TX

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 0.17 gallons of gas to cover the route between Fort Sam Houston, TX and Kirby, TX.

The estimated cost of gas to go from Fort Sam Houston to Kirby is $0.61.

During the route, an average car will release 3.41 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

• Average USA gas price used for calculation is $3.48 per gallon of regular gas. Price last updated on March 18, 2026.
• Read more about our CO₂ calculation.

Halfway Point Between Fort Sam Houston, TX and Kirby, TX

If you want to meet halfway between Fort Sam Houston, TX and Kirby, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 29.456394 and -98.413513, or 29º 27' 23.0184" N, 98º 24' 48.6468" W. This location is 2.17 miles away from Fort Sam Houston, TX and Kirby, TX and it would take approximately 5 minutes to reach the halfway point from both locations.

Weather in Fort Sam Houston and Kirby

Compare the weather today and the next four days in Fort Sam Houston, TX and Kirby, TX:

Fort Sam Houston

Mon Sep 7	Tue Sep 8	Wed Sep 9	Thu Sep 10	Fri Sep 11
38° 24°	37° 24°	35° 24°	37° 25°	37° 24°
5%	11%	8%	13%	6%
11	14	11	18	15

Kirby

Mon Sep 7	Tue Sep 8	Wed Sep 9	Thu Sep 10	Fri Sep 11
38° 25°	37° 25°	35° 25°	37° 25°	37° 25°
5%	9%	6%	12%	5%
11	14	11	18	15

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