Marine OS

Sea distances

Sea distance from Felixstowe to Cape Town

The sea route from Felixstowe (United Kingdom) to Cape Town (South Africa) is about 6,168 nautical miles, which is 11,423 km or 7,098 statute miles. The route transits Strait of Dover. That is about 18% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

6,168
nautical miles
11,423
kilometers
25d 17h
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)51d 10h
Sailboat, average (6 kn)42d 20h
Displacement trawler (8 kn)32d 3h
Fast trawler (10 kn)25d 17h
Planing motor yacht (15 kn)17d 3h
Fast motor yacht (20 kn)12d 20h

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 Felixstowe 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 planner

Frequently asked questions

How far is Cape Town from Felixstowe by sea?

About 6,168 nautical miles (11,423 km / 7,098 statute miles) along the practical sea route, which transits Strait of Dover. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.

How long does it take to sail from Felixstowe to Cape Town?

At a typical sailing average of 6 knots it is about 42d 20h underway. A 10-knot trawler needs about 25d 17h, and a 20-knot motor yacht about 12d 20h. 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.