Sea distance from Karachi to Tokyo
The sea route from Karachi (Pakistan) to Tokyo (Japan) is about 5,970 nautical miles, which is 11,057 km or 6,871 statute miles. The route transits Strait of Malacca. That is about 59% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.
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 speed | Time underway |
|---|---|
| Sailboat, conservative (5 kn) | 49d 18h |
| Sailboat, average (6 kn) | 41d 11h |
| Displacement trawler (8 kn) | 31d 2h |
| Fast trawler (10 kn) | 24d 21h |
| Planing motor yacht (15 kn) | 16d 14h |
| Fast motor yacht (20 kn) | 12d 11h |
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 Karachi 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 plannerFrequently asked questions
How far is Tokyo from Karachi by sea?
About 5,970 nautical miles (11,057 km / 6,871 statute miles) along the practical sea route, which transits Strait of Malacca. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Karachi to Tokyo?
At a typical sailing average of 6 knots it is about 41d 11h underway. A 10-knot trawler needs about 24d 21h, and a 20-knot motor yacht about 12d 11h. 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.
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