Sea distance from Buenos Aires to Tokyo
The sea route from Buenos Aires (Argentina) to Tokyo (Japan) is about 10,944 nautical miles, which is 20,269 km or 12,594 statute miles. The route transits Strait of Magellan. That is about 11% 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 5h |
| Sailboat, average (6 kn) | 76d 0h |
| Displacement trawler (8 kn) | 57d 0h |
| Fast trawler (10 kn) | 45d 14h |
| Planing motor yacht (15 kn) | 30d 10h |
| Fast motor yacht (20 kn) | 22d 19h |
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 Buenos Aires to Tokyo 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 Tokyo from Buenos Aires by sea?
About 10,944 nautical miles (20,269 km / 12,594 statute miles) along the practical sea route, which transits Strait of Magellan. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Buenos Aires to Tokyo?
At a typical sailing average of 6 knots it is about 76d 0h underway. A 10-knot trawler needs about 45d 14h, and a 20-knot motor yacht about 22d 19h. 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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