There are
2,794 mi
from Clearwater, FL to Hillsborough, CA
That's the driving distance. It would take 2 days 3 hours to go from Clearwater, Florida to Hillsborough, California.
The flight distance (direct flight from Clearwater, FL to Hillsborough, CA) is 2,374.15 mi.
2,794 mi = 4,496.19 kms