Marine OS

Sea distances

Sea distance from Cape Town to Karachi

The sea route from Cape Town (South Africa) to Karachi (Pakistan) is about 4,858 nautical miles, which is 8,998 km or 5,591 statute miles. That is about 8% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

4,858
nautical miles
8,998
kilometers
20d 6h
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)40d 12h
Sailboat, average (6 kn)33d 18h
Displacement trawler (8 kn)25d 7h
Fast trawler (10 kn)20d 6h
Planing motor yacht (15 kn)13d 12h
Fast motor yacht (20 kn)10d 3h

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 Karachi 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 Karachi from Cape Town by sea?

About 4,858 nautical miles (8,998 km / 5,591 statute miles) along the practical sea route. 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 Karachi?

At a typical sailing average of 6 knots it is about 33d 18h underway. A 10-knot trawler needs about 20d 6h, and a 20-knot motor yacht about 10d 3h. 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.