There are
1,308 mi
from Topeka, KS to Boulder City, NV
That's the driving distance. It would take 22 hours 26 mins to go from Topeka, Kansas to Boulder City, Nevada.
The flight distance (direct flight from Topeka, KS to Boulder City, NV) is 1,068.29 mi.
1,308 mi = 1.61 kms