Shipping a container from Antwerp (BE) to Karleby takes on average 5 days. The total distance is about 1250 nautical miles (nmi). 1 nautical mile is equivalent to 1.85 km. That makes the distance 2315 km. If you ship something by sea, you have to pay close attention to ETD and ETA. ETD means the Expected or Estimated Time of Departure. ETA means the expected date of arrival of an ocean carrier. The exact shipping time depends on condition of the hull, the sea conditions and port inspection.