Port Klang to Singapore Sea Distance Calculator

Calculate the exact nautical distance from Port Klang, Malaysia to Singapore, Singapore. Plan your maritime journey with our professional route calculator.

Distance: 291.4 nm; nautical miles
Under Sail: 2.4 days; at 5 knots
Under Power: 29 hours; at 10 knots
Best Time: November-March; 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: 291.4 nautical miles

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This map shows the direct sea route from Port Klang to Singapore. 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 63% longer than the 179 nm direct line, its heading turning from west to east-northeast. It is an international crossing between two countries.

Sea distance: 291.4 nm (539.7 km)
Direct line: 178.6 nm63% longer
Great-circle bearing: 126° (southeast)
Geographic extent: 2.1° × 3.2°
Crossing: Cross-border · Same region
From: Port Klang (Malaysia) 3.0000, 101.4000
To: Singapore (Singapore) 1.2655, 103.8186
Route basis: Sea-lane route

Passage timeEstimated passage time by cruising speed
Cruising speed	Duration
5 kn	2.4 days
8 kn	36 hours
10 kn	29 hours
12 kn	24 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 Port Klang to Singapore Route

A medium ocean international sea route between Port Klang and Singapore, this passage connecting two major commercial ports in the Southeast Asia region demands attention to typhoon-track exposure July through October in the northern reaches.

The corridor within the same maritime region joins Port Klang, Malaysia to Singapore, Singapore.

Navigation Tips

•Plan this medium ocean international leg in the Southeast Asia region with attention to typhoon-track exposure July through October in the northern reaches.
•Provisioning for this medium ocean passage in Southeast Asia should account for regional supply networks.
•Allow time for entry formalities on this international leg within the same maritime region.
•Adapt safety equipment to Southeast Asia conditions for this medium ocean crossing.
•For a international crossing within the same maritime region, ensure clearance papers and visas are in order before departure.

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Frequently Asked Questions

How far is it from Port Klang to Singapore by sea?

This is a medium ocean sea passage of about 291.4 nautical miles between Port Klang and Singapore in Southeast Asia.

How long does it take to sail from Port Klang to Singapore?

Average voyage time on this medium ocean within the same maritime region leg of 291.4 nautical miles is 1.2 days – 2.4 days.

What's the best time to sail from Port Klang to Singapore?

Aim for November-March for the calmest passage in Southeast Asia; off-peak periods bring typhoon-track exposure July through October in the northern reaches.

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