Shortest distance between San Marcos and Amarillo is 432.78 miles (696.49 km).
Flight distance from San Marcos, TX to Amarillo, TX is 432.78 miles. Estimated flight time is 01 hours 03 minutes.
It takes 00 hours 57 minutes to travel from San Marcos to Amarillo with an airplane (average speed of 550 miles).
The driving distance from San Marcos, Texas to Amarillo, Texas is: 528.7 miles (850.86 km) by car.
Driving from San Marcos to Amarillo will take approximately 08 hours 05 minutes.
The distance between San Marcos and Amarillo is 851 km if you choose to drive by road. You can go 09 hours 27 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 Amarillo. The current time is 19:52:27.
|Average Speed||Travel Time|
|30 mph (48.3 km/h)||17 hours 36 minutes|
|40 mph (64.37 km/h)||13 hours 13 minutes|
|50 mph (80.47 km/h)||10 hours 34 minutes|
|60 mph (96.56 km/h)||08 hours 48 minutes|
|70 mph (112.65 km/h)||07 hours 33 minutes|
|75 mph (120.7 km/h)||07 hours 02 minutes|
|80 mph (128.75 km/h)||06 hours 35 minutes|
A car with a fuel efficiency of 8.3 l/100 km will need 70.62 liters (18.66 gallon) of gas to cover the route between San Marcos and Amarillo.
The estimated cost of gas to go from San Marcos to Amarillo is $63.06 (diesel $69.4).
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 Amarillo (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.