Marine OS

Sea distances

Sea distance from Karachi to Honolulu

The sea route from Karachi (Pakistan) to Honolulu (United States) is about 8,936 nautical miles, which is 16,550 km or 10,284 statute miles. The route transits Strait of Malacca. That is about 28% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

8,936
nautical miles
16,550
kilometers
37d 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)74d 11h
Sailboat, average (6 kn)62d 1h
Displacement trawler (8 kn)46d 13h
Fast trawler (10 kn)37d 6h
Planing motor yacht (15 kn)24d 20h
Fast motor yacht (20 kn)18d 15h

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 Honolulu 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 Honolulu from Karachi by sea?

About 8,936 nautical miles (16,550 km / 10,284 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 Honolulu?

At a typical sailing average of 6 knots it is about 62d 1h underway. A 10-knot trawler needs about 37d 6h, and a 20-knot motor yacht about 18d 15h. 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.