Sea distance from Buenos Aires to Sydney
The sea route from Buenos Aires (Argentina) to Sydney (Australia) is about 7,226 nautical miles, which is 13,382 km or 8,315 statute miles. The route transits Strait of Magellan. 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) | 60d 5h |
| Sailboat, average (6 kn) | 50d 4h |
| Displacement trawler (8 kn) | 37d 15h |
| Fast trawler (10 kn) | 30d 3h |
| Planing motor yacht (15 kn) | 20d 2h |
| Fast motor yacht (20 kn) | 15d 1h |
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 Sydney 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 Sydney from Buenos Aires by sea?
About 7,226 nautical miles (13,382 km / 8,315 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 Sydney?
At a typical sailing average of 6 knots it is about 50d 4h underway. A 10-knot trawler needs about 30d 3h, and a 20-knot motor yacht about 15d 1h. 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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