Marine OS

Sea distances

Sea distance from Barcelona to Karachi

The sea route from Barcelona (Spain) to Karachi (Pakistan) is about 4,497 nautical miles, which is 8,328 km or 5,175 statute miles. The route transits Suez Canal and Bab-el-Mandeb. That is about 35% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

4,497
nautical miles
8,328
kilometers
18d 18h
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)37d 11h
Sailboat, average (6 kn)31d 6h
Displacement trawler (8 kn)23d 10h
Fast trawler (10 kn)18d 18h
Planing motor yacht (15 kn)12d 12h
Fast motor yacht (20 kn)9d 9h

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 Barcelona 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 Barcelona by sea?

About 4,497 nautical miles (8,328 km / 5,175 statute miles) along the practical sea route, which transits Suez Canal and Bab-el-Mandeb. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.

How long does it take to sail from Barcelona to Karachi?

At a typical sailing average of 6 knots it is about 31d 6h underway. A 10-knot trawler needs about 18d 18h, and a 20-knot motor yacht about 9d 9h. 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.