There are
1,094 mi
from Gaithersburg, MD to Topeka, KS
That's the driving distance. It would take 20 hours 46 mins to go from Gaithersburg, Maryland to Topeka, Kansas.
The flight distance (direct flight from Gaithersburg, MD to Topeka, KS) is 989.60 mi.
1,094 mi = 1,760.57 kms