Marine OS

Sea distances

Sea distance from Colombo to Tanjung Priok

The sea route from Colombo (Sri Lanka) to Tanjung Priok (Indonesia) is about 1,989 nautical miles, which is 3,683 km or 2,289 statute miles. The route transits Sunda Strait. That is about 11% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

1,989
nautical miles
3,683
kilometers
8d 7h
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)16d 14h
Sailboat, average (6 kn)13d 20h
Displacement trawler (8 kn)10d 9h
Fast trawler (10 kn)8d 7h
Planing motor yacht (15 kn)5d 13h
Fast motor yacht (20 kn)4d 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 Colombo to Tanjung Priok 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 Tanjung Priok from Colombo by sea?

About 1,989 nautical miles (3,683 km / 2,289 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 Colombo to Tanjung Priok?

At a typical sailing average of 6 knots it is about 13d 20h underway. A 10-knot trawler needs about 8d 7h, and a 20-knot motor yacht about 4d 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.