There are
2,816 mi
from St Petersburg, FL to Brentwood, CA
That's the driving distance. It would take 2 days 2 hours to go from St Petersburg, Florida to Brentwood, California.
The flight distance (direct flight from St Petersburg, FL to Brentwood, CA) is 2,353.91 mi.
2,816 mi = 4,531.66 kms