There are
1,817 mi
from Olathe, KS to San Ramon, CA
That's the driving distance. It would take 1 day 7 hours to go from Olathe, Kansas to San Ramon, California.
The flight distance (direct flight from Olathe, KS to San Ramon, CA) is 1,468.55 mi.
1,817 mi = 1.61 kms