Tianjin to Dalian Sea Distance Calculator

Calculate the exact nautical distance from Tianjin, China to Dalian, China. Plan your maritime journey with our professional route calculator.

Distance
253.5 nm
nautical miles
Under Sail
2.1 days
at 5 knots
Under Power
25 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: 253.5 nautical miles
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This map shows the direct sea route from Tianjin to Dalian. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a moderately indirect coastal passage: the navigable route runs 21% longer than the 210 nm direct line, its heading turning from east-southeast to west-southwest. It spans two maritime regions.

Sea distance
253.5 nm (469.4 km)
Direct line
209.8 nm21% longer
Great-circle bearing
92° (east)
Geographic extent
0.5° × 4.8°
Crossing
Domestic · Cross-region
From
Tianjin (China) 39.1422, 117.1767
To
Dalian (China) 38.9167, 121.6667
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn2.1 days
8 kn32 hours
10 kn25 hours
12 kn21 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 Tianjin to Dalian Route

A medium ocean within one country sea route between Tianjin and Dalian, 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 crossing between different maritime regions joins Tianjin, China to Dalian, China.

Navigation Tips

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

Frequently Asked Questions

How far is it from Tianjin to Dalian by sea?

This is a medium ocean sea passage of about 253.5 nautical miles between Tianjin and Dalian in Pacific.

How long does it take to sail from Tianjin to Dalian?

Average voyage time on this medium ocean crossing between different maritime regions leg of 253.5 nautical miles is 1.1 days – 2.1 days.

What's the best time to sail from Tianjin to Dalian?

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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