Miles between Greeley, CO and San Marcos, TX

There are
988 mi
from Greeley, CO to San Marcos, TX

That's the driving distance. It would take 18 hours 13 mins to go from Greeley, Colorado to San Marcos, Texas.

The flight distance (direct flight from Greeley, CO to San Marcos, TX) is 821.84 mi.

988 mi = 1,590.09 kms