The bike path network of Karlshamn is gradually expanding, connecting the localities M�rrum-Sv�ngsta-Asarum-Karlshamn. The road network is mostly covered by tarmac. The European trunk road E22 transverses the municipality, and the national road 29 connects the port to the province Sm�land in the north. The railroad "Blekinge kustbana", electrified in 2006, connects the towns of the region with trains every hour. The port in Stilleryd is number six in Sweden as related to tonnes of cargo, is the largest and deepest in southeast Sweden and has a regular ferry service with Kiel in Germany, Klaip?da in Lithuania and S:t Peters burg in Russia
