Sea distance from Algeciras to Mombasa
The sea route from Algeciras (Spain) to Mombasa (Kenya) is about 5,051 nautical miles, which is 9,354 km or 5,812 statute miles. The route transits Strait of Gibraltar and Suez Canal and Bab-el-Mandeb. That is about 45% 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) | 42d 2h |
| Sailboat, average (6 kn) | 35d 2h |
| Displacement trawler (8 kn) | 26d 7h |
| Fast trawler (10 kn) | 21d 1h |
| Planing motor yacht (15 kn) | 14d 1h |
| Fast motor yacht (20 kn) | 10d 13h |
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 Algeciras to Mombasa 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 Mombasa from Algeciras by sea?
About 5,051 nautical miles (9,354 km / 5,812 statute miles) along the practical sea route, which transits Strait of Gibraltar and Suez Canal and Bab-el-Mandeb. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Algeciras to Mombasa?
At a typical sailing average of 6 knots it is about 35d 2h underway. A 10-knot trawler needs about 21d 1h, and a 20-knot motor yacht about 10d 13h. 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.
Related sea distances