There are
2,443 mi
from Rocklin, CA to Niceville, FL
That's the driving distance. It would take 1 day 19 hours to go from Rocklin, California to Niceville, Florida.
The flight distance (direct flight from Rocklin, CA to Niceville, FL) is 2,042.66 mi.
2,443 mi = 3,931.60 kms