Sea distance from Houston to Colombo
The sea route from Houston (United States) to Colombo (Sri Lanka) is about 10,242 nautical miles, which is 18,968 km or 11,786 statute miles. The route transits Strait of Gibraltar and Suez Canal and Bab-el-Mandeb. That is about 19% 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) | 85d 8h |
| Sailboat, average (6 kn) | 71d 3h |
| Displacement trawler (8 kn) | 53d 8h |
| Fast trawler (10 kn) | 42d 16h |
| Planing motor yacht (15 kn) | 28d 11h |
| Fast motor yacht (20 kn) | 21d 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 Houston to Colombo 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 Colombo from Houston by sea?
About 10,242 nautical miles (18,968 km / 11,786 statute miles) along the practical sea route, which transits Strait of Gibraltar and Suez Canal and Bab-el-Mandeb. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from Houston to Colombo?
At a typical sailing average of 6 knots it is about 71d 3h underway. A 10-knot trawler needs about 42d 16h, and a 20-knot motor yacht about 21d 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.
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