There are
2,834 mi
from St Petersburg, FL to Redwood City, CA
That's the driving distance. It would take 2 days 2 hours to go from St Petersburg, Florida to Redwood City, California.
The flight distance (direct flight from St Petersburg, FL to Redwood City, CA) is 2,380.57 mi.
2,834 mi = 4,561.05 kms