Sea distance from Rotterdam to Busan
The sea route from Rotterdam (Netherlands) to Busan (South Korea) is about 10,999 nautical miles, which is 20,370 km or 12,657 statute miles. The route transits Strait of Dover and Strait of Gibraltar and Suez Canal and Bab-el-Mandeb and Strait of Malacca. That is about 128% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.
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 speed | Time underway |
|---|---|
| Sailboat, conservative (5 kn) | 91d 16h |
| Sailboat, average (6 kn) | 76d 9h |
| Displacement trawler (8 kn) | 57d 7h |
| Fast trawler (10 kn) | 45d 20h |
| Planing motor yacht (15 kn) | 30d 13h |
| Fast motor yacht (20 kn) | 22d 22h |
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 Rotterdam 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 plannerFrequently asked questions
How far is Busan from Rotterdam by sea?
About 10,999 nautical miles (20,370 km / 12,657 statute miles) along the practical sea route, which transits 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 Rotterdam to Busan?
At a typical sailing average of 6 knots it is about 76d 9h underway. A 10-knot trawler needs about 45d 20h, and a 20-knot motor yacht about 22d 22h. 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.
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