The KVV network is divided into tariff areas, so-called 'Waben'. Together they form the 'Tarifwabenplan'.
How much it costs to travel by bus and train depends on how many 'Waben' are passed through.
The starting and end 'Waben' count as well.
The tariff areas Karlsruhe and Baden-Baden/Sinzheim count double due to their size.