Shortest distance between San Marcos and Laredo is 189.68 miles (305.26 km).
Flight distance from San Marcos, TX to Laredo, TX is 189.68 miles. Estimated flight time is 00 hours 24 minutes.
It takes 00 hours 22 minutes to travel from San Marcos to Laredo with an airplane (average speed of 550 miles).
The driving distance from San Marcos, Texas to Laredo, Texas is: 205.5 miles (330.72 km) by car.
Driving from San Marcos to Laredo will take approximately 03 hours 05 minutes.
The distance between San Marcos and Laredo is 331 km if you choose to drive by road. You can go 03 hours 40 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between San Marcos and Laredo. The current time is 13:19:13.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||06 hours 50 minutes|
|40 mph (64.37 km/h)||05 hours 08 minutes|
|50 mph (80.47 km/h)||04 hours 06 minutes|
|60 mph (96.56 km/h)||03 hours 25 minutes|
|70 mph (112.65 km/h)||02 hours 56 minutes|
|75 mph (120.7 km/h)||02 hours 44 minutes|
|80 mph (128.75 km/h)||02 hours 33 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 27.45 liters (7.25 gallon) of gas to cover the route between San Marcos and Laredo.
The estimated cost of gas to go from San Marcos to Laredo is $24.51 (diesel $26.98).
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price per gallon of daily gas for calculations is $3.38 (Diesel $3.72) /gallon. Last changed prices on December 02, 2021.
The place names are translated into coordinates to approximate the distance between San Marcos and Laredo (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.