Dalian to Inchon Sea Distance Calculator

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

Distance: 308.6 nm; nautical miles
Under Sail: 2.6 days; at 5 knots
Under Power: 31 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: 308.6 nautical miles

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This map shows the direct sea route from Dalian to Inchon. 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 24% longer than the 249 nm direct line, its heading turning from east-northeast to north-northeast. It is an international crossing between two countries.

Sea distance: 308.6 nm (571.6 km)
Direct line: 249.2 nm24% longer
Great-circle bearing: 109° (east-southeast)
Geographic extent: 2.1° × 5.0°
Crossing: Cross-border · Same region
From: Dalian (China) 38.9167, 121.6667
To: Inchon (South Korea) 37.4667, 126.6167
Route basis: Sea-lane route

Passage timeEstimated passage time by cruising speed
Cruising speed	Duration
5 kn	2.6 days
8 kn	39 hours
10 kn	31 hours
12 kn	26 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 Dalian to Inchon Route

The maritime route from Dalian to Inchon is one of the popular sea connections in the East Asia region. This 308.6161965820341 nautical mile journey typically takes 1.3 days – 2.6 days depending on your vessel type and weather conditions.

Dalian serves as a major port in China, while Inchon is an important major destination in South Korea. Both ports offer excellent facilities for recreational and commercial vessels.

Navigation Tips

•Check weather forecasts before departure, especially during winter months
•Consider fuel stops for longer journeys - calculate consumption using our tool
•Verify port entry requirements and operating hours at both destinations
•Account for seasonal variations in sea conditions and daylight hours
•Keep updated nautical charts and follow established shipping lanes

Frequently Asked Questions

How far is it from Dalian to Inchon by sea?

The sea distance from Dalian to Inchon is approximately 308.6 nautical miles. The exact distance may vary slightly depending on your specific route and any waypoints you include.

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

For private vessels, sailing time depends on your cruising speed. At 10 knots, expect approximately 31 hours of sailing time.

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

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.

Plan another route with our Sea Distance Calculator Navigation Guide