There are
1,858 mi
from Redwood City, CA to Newton, IA
That's the driving distance. It would take 1 day 7 hours to go from Redwood City, California to Newton, Iowa.
The flight distance (direct flight from Redwood City, CA to Newton, IA) is 1,572.77 mi.
1,858 mi = 2,990.77 kms