Sea distance from New York to Sydney
The sea route from New York (United States) to Sydney (Australia) is about 9,802 nautical miles, which is 18,153 km or 11,279 statute miles. The route transits Panama Canal. That is about 14% 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) | 81d 16h |
| Sailboat, average (6 kn) | 68d 2h |
| Displacement trawler (8 kn) | 51d 1h |
| Fast trawler (10 kn) | 40d 20h |
| Planing motor yacht (15 kn) | 27d 5h |
| Fast motor yacht (20 kn) | 20d 10h |
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 New York to Sydney 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 Sydney from New York by sea?
About 9,802 nautical miles (18,153 km / 11,279 statute miles) along the practical sea route, which transits Panama Canal. The straight-line distance is shorter, but boats follow coastlines, channels, and traffic lanes.
How long does it take to sail from New York to Sydney?
At a typical sailing average of 6 knots it is about 68d 2h underway. A 10-knot trawler needs about 40d 20h, and a 20-knot motor yacht about 20d 10h. 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.
Related sea distances