There are
1,800 mi
from Topeka, KS to Fremont, CA
That's the driving distance. It would take 1 day 6 hours to go from Topeka, Kansas to Fremont, California.
The flight distance (direct flight from Topeka, KS to Fremont, CA) is 1,424.85 mi.
1,800 mi = 1.61 kms