Marine OS

Sea distances

Sea distance from Marseille to Colombo

The sea route from Marseille (France) to Colombo (Sri Lanka) is about 5,049 nautical miles, which is 9,352 km or 5,811 statute miles. The route transits Suez Canal and Bab-el-Mandeb. That is about 14% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

5,049
nautical miles
9,352
kilometers
21d 1h
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)42d 2h
Sailboat, average (6 kn)35d 2h
Displacement trawler (8 kn)26d 7h
Fast trawler (10 kn)21d 1h
Planing motor yacht (15 kn)14d 1h
Fast motor yacht (20 kn)10d 12h

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 Marseille to Colombo 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 Colombo from Marseille by sea?

About 5,049 nautical miles (9,352 km / 5,811 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 Marseille to Colombo?

At a typical sailing average of 6 knots it is about 35d 2h underway. A 10-knot trawler needs about 21d 1h, and a 20-knot motor yacht about 10d 12h. 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.