Sea distance from Cape Town to Hong Kong
The sea route from Cape Town (South Africa) to Hong Kong (Hong Kong) is about 7,005 nautical miles, which is 12,973 km or 8,061 statute miles. The route transits Sunda Strait. That is about 9% 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) | 58d 9h |
| Sailboat, average (6 kn) | 48d 16h |
| Displacement trawler (8 kn) | 36d 12h |
| Fast trawler (10 kn) | 29d 5h |
| Planing motor yacht (15 kn) | 19d 11h |
| Fast motor yacht (20 kn) | 14d 14h |
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 Cape Town to Hong Kong 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 Hong Kong from Cape Town by sea?
About 7,005 nautical miles (12,973 km / 8,061 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 Cape Town to Hong Kong?
At a typical sailing average of 6 knots it is about 48d 16h underway. A 10-knot trawler needs about 29d 5h, and a 20-knot motor yacht about 14d 14h. 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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