Sea distance from Mombasa to Tanjung Priok
The sea route from Mombasa (Kenya) to Tanjung Priok (Indonesia) is about 4,223 nautical miles, which is 7,821 km or 4,859 statute miles. The route transits Sunda Strait. 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) | 35d 5h |
| Sailboat, average (6 kn) | 29d 8h |
| Displacement trawler (8 kn) | 22d 0h |
| Fast trawler (10 kn) | 17d 14h |
| Planing motor yacht (15 kn) | 11d 18h |
| Fast motor yacht (20 kn) | 8d 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 Mombasa to Tanjung Priok 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 Tanjung Priok from Mombasa by sea?
About 4,223 nautical miles (7,821 km / 4,859 statute miles) along the practical sea route, which transits Sunda Strait. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Mombasa to Tanjung Priok?
At a typical sailing average of 6 knots it is about 29d 8h underway. A 10-knot trawler needs about 17d 14h, and a 20-knot motor yacht about 8d 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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