Sea distance from Marseille to Cape Town
The sea route from Marseille (France) to Cape Town (South Africa) is about 5,867 nautical miles, which is 10,865 km or 6,751 statute miles. The route transits Strait of Gibraltar. That is about 25% 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) | 48d 21h |
| Sailboat, average (6 kn) | 40d 18h |
| Displacement trawler (8 kn) | 30d 13h |
| Fast trawler (10 kn) | 24d 11h |
| Planing motor yacht (15 kn) | 16d 7h |
| Fast motor yacht (20 kn) | 12d 5h |
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 Marseille to Cape Town 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 Cape Town from Marseille by sea?
About 5,867 nautical miles (10,865 km / 6,751 statute miles) along the practical sea route, which transits Strait of Gibraltar. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Marseille to Cape Town?
At a typical sailing average of 6 knots it is about 40d 18h underway. A 10-knot trawler needs about 24d 11h, and a 20-knot motor yacht about 12d 5h. 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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