Marine OS

Sea distances

Sea distance from Mombasa to Honolulu

The sea route from Mombasa (Kenya) to Honolulu (United States) is about 10,095 nautical miles, which is 18,697 km or 11,618 statute miles. The route transits Strait of Malacca. That is about 8% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

10,095
nautical miles
18,697
kilometers
42d 2h
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)84d 3h
Sailboat, average (6 kn)70d 3h
Displacement trawler (8 kn)52d 14h
Fast trawler (10 kn)42d 2h
Planing motor yacht (15 kn)28d 1h
Fast motor yacht (20 kn)21d 1h

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 Mombasa 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 Mombasa by sea?

About 10,095 nautical miles (18,697 km / 11,618 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 Mombasa to Honolulu?

At a typical sailing average of 6 knots it is about 70d 3h underway. A 10-knot trawler needs about 42d 2h, and a 20-knot motor yacht about 21d 1h. 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.