There are
1,589 mi
from Merced, CA to Lewisville, TX
That's the driving distance. It would take 1 day 3 hours to go from Merced, California to Lewisville, Texas.
The flight distance (direct flight from Merced, CA to Lewisville, TX) is 1,355 mi.
1,589 mi = 2,557.82 kms