Marine OS

Sea distances

Sea distance from Apapa to Busan

The sea route from Apapa (Nigeria) to Busan (South Korea) is about 10,720 nautical miles, which is 19,854 km or 12,337 statute miles. The route transits Sunda Strait. That is about 56% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

10,720
nautical miles
19,854
kilometers
44d 16h
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)89d 8h
Sailboat, average (6 kn)74d 11h
Displacement trawler (8 kn)55d 20h
Fast trawler (10 kn)44d 16h
Planing motor yacht (15 kn)29d 19h
Fast motor yacht (20 kn)22d 8h

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 Apapa to Busan 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 Busan from Apapa by sea?

About 10,720 nautical miles (19,854 km / 12,337 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 Apapa to Busan?

At a typical sailing average of 6 knots it is about 74d 11h underway. A 10-knot trawler needs about 44d 16h, and a 20-knot motor yacht about 22d 8h. 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.