Marine OS

Sea distances

Sea distance from Cape Town to Kaohsiung

The sea route from Cape Town (South Africa) to Kaohsiung (Taiwan) is about 7,176 nautical miles, which is 13,289 km or 8,258 statute miles. The route transits Sunda Strait. That is about 7% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

7,176
nautical miles
13,289
kilometers
29d 22h
at 10 knots

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 speedTime underway
Sailboat, conservative (5 kn)59d 19h
Sailboat, average (6 kn)49d 20h
Displacement trawler (8 kn)37d 9h
Fast trawler (10 kn)29d 22h
Planing motor yacht (15 kn)19d 22h
Fast motor yacht (20 kn)14d 23h

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 Kaohsiung 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 planner

Frequently asked questions

How far is Kaohsiung from Cape Town by sea?

About 7,176 nautical miles (13,289 km / 8,258 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 Kaohsiung?

At a typical sailing average of 6 knots it is about 49d 20h underway. A 10-knot trawler needs about 29d 22h, and a 20-knot motor yacht about 14d 23h. 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.