There are
1,811 mi
from San Leandro, CA to Gladstone, MO
That's the driving distance. It would take 1 day 6 hours to go from San Leandro, California to Gladstone, Missouri.
The flight distance (direct flight from San Leandro, CA to Gladstone, MO) is 1,490.95 mi.
1,811 mi = 1.61 kms