Marine OS

Sea distances

Sea distance from Chennai (ex Madras) to Auckland

The sea route from Chennai (ex Madras) (India) to Auckland (New Zealand) is about 6,517 nautical miles, which is 12,069 km or 7,499 statute miles. The route transits Strait of Malacca. That is about 7% longer than the direct great-circle line, because the practical route follows coastlines and shipping lanes.

6,517
nautical miles
12,069
kilometers
27d 4h
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)54d 7h
Sailboat, average (6 kn)45d 6h
Displacement trawler (8 kn)33d 23h
Fast trawler (10 kn)27d 4h
Planing motor yacht (15 kn)18d 2h
Fast motor yacht (20 kn)13d 14h

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 Chennai (ex Madras) to Auckland 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 Auckland from Chennai (ex Madras) by sea?

About 6,517 nautical miles (12,069 km / 7,499 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 Chennai (ex Madras) to Auckland?

At a typical sailing average of 6 knots it is about 45d 6h underway. A 10-knot trawler needs about 27d 4h, and a 20-knot motor yacht about 13d 14h. 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.