The greater Copenhagen area has a very well established transportation infrastructure making it a hub in Northern Europe.
Roads

Copenhagen has a large network of toll-free motorways and public roads connecting different municipalities of the city together and to Northern Europe.  As in many other cities in Europe traffic is increasing in Copenhagen. The radial arterial roads leading to Copenhagen city centre are critically congested during peak hours.

Cycling

Main article: Cycling in Copenhagen
Bicycle rush hour in Copenhagen, where 37% of the population ride their bikes every day.

Copenhagen is known as one of the most bicycle-friendly cities in the world.  Every day 1.1 million km are bicycled in Copenhagen.  36% of all citizens commute to work, school or university by bicycle  and it is municipal policy that this number should go up to 40% by 2012 and 50% in 2015.  The city's bicycle paths are extensive and well used. Bicycle paths are often separated from the main traffic lanes and sometimes have their own signal systems.

The municipality is also developing a system of interconnected green bicycle routes, greenways, the aim being to facilitate fast, safe, and pleasant bicycle transport from one end of the city to the other. The network will cover more than 100 km (62 mi) and will have 22 routes when finished.  The city provides public bicycles which can be found throughout the downtown area and used with a returnable deposit of 20 kroner.

Copenhagen's well-developed bicycle culture is reflected in the use of 'copenhagenize' to describe the practice of other cities adopting Copenhagen-style bike lanes and bicycle infrastructure.  In 2007, Copenhagen-based Danish urban design consultant Jan Gehl was hired by the New York City Department of Transportation to re-imagine New York City streets by introducing designs to improve life for pedestrians and cyclists.  In recognition of Copenhagen's emphasis on bicycling, the city has been chosen by the Union Cycliste Internationale as their first official Bike City. Bike City Copenhagen will take place from 2008 to 2011 and consist of large cycling events for professionals as well as amateurs.

Harbour
A Copenhagen Harbour Bus approaching Knippelsbro Bridge

The harbour of Copenhagen has largely lost its industrial importance. In 2001, Copenhagen Harbour merged with the harbour in Malmö to create Copenhagen-Malmö Port. It has several functions, the most important being as a major cruise destination. In 2007 a record 286 cruise ships with 420,000 cruise passengers visited Copenhagen. 120 of these ships either started or ended the cruise in Copenhagen.  In 2008 these numbers grew further to 310 cruise ships and 560,000 passengers. As a result of the growth in the cruise industry facilities are being expanded and improved. At the World Travel Awards in 2008, Copenhagen Port was named the number one cruise destination in Europe for the fifth year in a row.

Copenhagen is serviced by ferry lines to Oslo in Norway (called "Oslobåden") with a daily connection  and to Swinoujscie in Poland (called "Polensfærgerne") with five weekly connections.

Copenhagen has four lines of waterbuses, known as the Copenhagen Harbour Buses, serving ten water bus stops; four on the Amager-side and six on the Zealand-side of the harbour, from Sluseholmen in the South to Holmen in the North.

Airports