Sea distance from Buenos Aires to Chennai (ex Madras)
The sea route from Buenos Aires (Argentina) to Chennai (ex Madras) (India) is about 8,606 nautical miles, which is 15,938 km or 9,903 statute miles. That is about 5% 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) | 71d 17h |
| Sailboat, average (6 kn) | 59d 18h |
| Displacement trawler (8 kn) | 44d 20h |
| Fast trawler (10 kn) | 35d 21h |
| Planing motor yacht (15 kn) | 23d 22h |
| Fast motor yacht (20 kn) | 17d 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 Buenos Aires to Chennai (ex Madras) 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 Chennai (ex Madras) from Buenos Aires by sea?
About 8,606 nautical miles (15,938 km / 9,903 statute miles) along the practical sea route. 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 Chennai (ex Madras)?
At a typical sailing average of 6 knots it is about 59d 18h underway. A 10-knot trawler needs about 35d 21h, and a 20-knot motor yacht about 17d 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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