There are
785 mi
from Redwood City, CA to Clearfield, UT
That's the driving distance. It would take 13 hours 40 mins to go from Redwood City, California to Clearfield, Utah.
The flight distance (direct flight from Redwood City, CA to Clearfield, UT) is 600.13 mi.
785 mi = 1,263.36 kms