Nagoya to Onomichi Itozaki Sea Distance Calculator

Calculate the exact nautical distance from Nagoya, Japan to Onomichi Itozaki, Japan. Plan your maritime journey with our professional route calculator.

Distance
344 nm
nautical miles
Under Sail
2.9 days
at 5 knots
Under Power
34 hours
at 10 knots
Best Time
Varies by area
Typical Sailing Season

Distance follows a sea-lane route. Sailing times are estimates at fixed cruising speeds and vary with vessel, weather, and currents.

Interactive Route Map

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Distance: 344 nautical miles
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This map shows the direct sea route from Nagoya to Onomichi Itozaki. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a markedly indirect coastal passage: the navigable route runs 81% longer than the 191 nm direct line, its heading turning from south-southwest to northeast. It spans two maritime regions.

Sea distance
344 nm (637.1 km)
Direct line
190.5 nm81% longer
Great-circle bearing
257° (west-southwest)
Geographic extent
1.9° × 4.1°
Crossing
Domestic · Cross-region
From
Nagoya (Japan) 35.1815, 136.9066
To
Onomichi Itozaki (Japan) 34.3833, 133.1667
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn2.9 days
8 kn43 hours
10 kn34 hours
12 kn29 hours

Distance follows a sea-lane route generated from marine traffic lanes; passage times are computed at fixed cruising speeds.

Read the methodology — How we calculate sea distances

Last reviewed 2026-06-17

About Nagoya to Onomichi Itozaki Route

Linking Nagoya and Onomichi-Itozaki, this multi-day coastal within one country crossing between two major harbours sits in the Pacific region — a passage shaped by long ocean swells and squall lines depending on latitude.

The lane links Nagoya (Japan) and Onomichi-Itozaki (Japan), crossing between different maritime regions.

Navigation Tips

  • •A multi-day coastal within one country passage in the Pacific region typically requires planning for long ocean swells and squall lines depending on latitude.
  • •A multi-day coastal leg in Pacific benefits from waypoint planning and verified fuel availability.
  • •Confirm operating hours and clearance procedures for this within one country crossing crossing between different maritime regions, since rules vary by port.
  • •Verify that emergency equipment matches the demands of a multi-day coastal leg in Pacific.
  • •Documentation requirements differ for within one country passages crossing between different maritime regions; verify cruising permits in advance.

Frequently Asked Questions

How far is it from Nagoya to Onomichi Itozaki by sea?

Approximately 344 nautical miles separate Nagoya and Onomichi Itozaki by sea, making this a multi-day coastal leg in Pacific.

How long does it take to sail from Nagoya to Onomichi Itozaki?

Expect about 1.4 days – 2.9 days for a multi-day coastal run of 344 nautical miles crossing between different maritime regions.

What's the best time to sail from Nagoya to Onomichi Itozaki?

Conditions on this route vary by area and season, so there is no single best time that applies along its whole length. Always check current weather forecasts and sea conditions before departure.

Plan Your Perfect Maritime Journey

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