Marine OS

Sea distances

Sea distance from Apapa to Tokyo

The sea route from Apapa (Nigeria) to Tokyo (Japan) is about 11,102 nautical miles, which is 20,561 km or 12,776 statute miles. The route transits Sunda Strait. That is about 53% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

11,102
nautical miles
20,561
kilometers
46d 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)92d 12h
Sailboat, average (6 kn)77d 2h
Displacement trawler (8 kn)57d 20h
Fast trawler (10 kn)46d 6h
Planing motor yacht (15 kn)30d 20h
Fast motor yacht (20 kn)23d 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 Apapa to Tokyo 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 Tokyo from Apapa by sea?

About 11,102 nautical miles (20,561 km / 12,776 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 Tokyo?

At a typical sailing average of 6 knots it is about 77d 2h underway. A 10-knot trawler needs about 46d 6h, and a 20-knot motor yacht about 23d 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.