Marine OS

Sea distances

Sea distance from Hamburg to Busan

The sea route from Hamburg (Germany) to Busan (South Korea) is about 11,259 nautical miles, which is 20,852 km or 12,957 statute miles. The route transits Kiel Canal and Strait of Dover and Strait of Gibraltar and Suez Canal and Bab-el-Mandeb and Strait of Malacca. That is about 144% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

11,259
nautical miles
20,852
kilometers
46d 22h
at 10 knots

Voyage time by boat speed

Time underway is distance divided by speed. These are continuous-passage figures with no stops or weather margin.

Boat and speedTime underway
Sailboat, conservative (5 kn)93d 20h
Sailboat, average (6 kn)78d 5h
Displacement trawler (8 kn)58d 15h
Fast trawler (10 kn)46d 22h
Planing motor yacht (15 kn)31d 7h
Fast motor yacht (20 kn)23d 11h

Planning estimate, not navigation

This distance is computed over the open Eurostat shipping-lane network. It is a realistic passage length for planning, but your sailed distance will differ with weather routing, currents, draft, and the exact berths you leave from and arrive at. Always verify against official charts.

Building with these numbers? The sea route & distance API returns this figure, voyage time, and route geometry for any port pair in one GET request.

Plan this passage properly

Open Hamburg to Busan in the Marine OS route planner: it suggests the sea route, then you drag waypoints, set your speed and fuel burn, and check weather and tides along the way.

Open this route in the planner

Frequently asked questions

How far is Busan from Hamburg by sea?

About 11,259 nautical miles (20,852 km / 12,957 statute miles) along the practical sea route, which transits Kiel Canal and Strait of Dover and Strait of Gibraltar and Suez Canal and Bab-el-Mandeb and Strait of Malacca. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.

How long does it take to sail from Hamburg to Busan?

At a typical sailing average of 6 knots it is about 78d 5h underway. A 10-knot trawler needs about 46d 22h, and a 20-knot motor yacht about 23d 11h. Add margin for weather, currents, and stops.

How is this distance calculated?

It is computed over the open Eurostat global shipping-lane network, the same kind of network freight routing tools use. It is a realistic planning estimate, not a navigation product: your sailed distance will vary with weather routing, draft, and the exact harbors you use.