There are
2,831 mi
from St Petersburg, FL to Menlo Park, CA
That's the driving distance. It would take 2 days 2 hours to go from St Petersburg, Florida to Menlo Park, California.
The flight distance (direct flight from St Petersburg, FL to Menlo Park, CA) is 2,377.44 mi.
2,831 mi = 4,556.59 kms