Tokyo to Yokohama Sea Distance Calculator

Calculate the exact nautical distance from Tokyo, Japan to Yokohama, Japan. Plan your maritime journey with our professional route calculator.

Distance
30.7 nm
nautical miles
Under Sail
6 hours
at 5 knots
Under Power
3 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: 30.7 nautical miles
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This map shows the direct sea route from Tokyo to Yokohama. 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 120% longer than the 14 nm direct line, its heading turning from southeast to north-northwest.

Sea distance
30.7 nm (56.8 km)
Direct line
14 nm120% longer
Great-circle bearing
182° (south)
Sea area
Pacific Ocean
Geographic extent
0.3° × 0.2°
Crossing
Domestic · Same region
From
Tokyo (Japan) 35.6762, 139.6503
To
Yokohama (Japan) 35.4437, 139.6380
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn6 hours
8 kn4 hours
10 kn3 hours
12 kn3 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 Tokyo to Yokohama Route

A inshore within one country sea route between Tokyo and Yokohama, this passage between two major harbours in the Pacific region demands attention to eastern Pacific hurricane activity May through October in tropical latitudes.

The corridor between neighbouring ports of the same region joins Tokyo, Japan to Yokohama, Japan.

Navigation Tips

  • •Plan this inshore within one country leg in the Pacific region with attention to eastern Pacific hurricane activity May through October in tropical latitudes.
  • •Provisioning for this inshore passage in Pacific should account for regional supply networks.
  • •Allow time for entry formalities on this within one country leg between neighbouring ports of the same region.
  • •Adapt safety equipment to Pacific conditions for this inshore crossing.
  • •For a within one country crossing between neighbouring ports of the same region, ensure clearance papers and visas are in order before departure.

Frequently Asked Questions

How far is it from Tokyo to Yokohama by sea?

This is a inshore sea passage of about 30.7 nautical miles between Tokyo and Yokohama in Pacific.

How long does it take to sail from Tokyo to Yokohama?

Average voyage time on this inshore between neighbouring ports of the same region leg of 30.7 nautical miles is 3 hours – 6 hours.

What's the best time to sail from Tokyo to Yokohama?

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

Use our advanced calculator above to customize your route, add waypoints, calculate fuel costs, and share your journey plan with crew members.

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