Sea distance from Santos to Busan
The sea route from Santos (Brazil) to Busan (South Korea) is about 11,436 nautical miles, which is 21,179 km or 13,160 statute miles. The route transits Sunda Strait. That is about 13% 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) | 95d 7h |
| Sailboat, average (6 kn) | 79d 10h |
| Displacement trawler (8 kn) | 59d 14h |
| Fast trawler (10 kn) | 47d 16h |
| Planing motor yacht (15 kn) | 31d 18h |
| Fast motor yacht (20 kn) | 23d 20h |
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 Santos 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 Santos by sea?
About 11,436 nautical miles (21,179 km / 13,160 statute miles) along the practical sea route, which transits Sunda Strait. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Santos to Busan?
At a typical sailing average of 6 knots it is about 79d 10h underway. A 10-knot trawler needs about 47d 16h, and a 20-knot motor yacht about 23d 20h. 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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