Piraeus to Marmaris Sea Distance Calculator

Calculate the exact nautical distance from Piraeus, Greece to Marmaris, Turkey. Plan your maritime journey with our professional route calculator.

Distance: 270.7 nm; nautical miles
Under Sail: 2.3 days; at 5 knots
Under Power: 27 hours; at 10 knots
Best Time: May-October; Typical Sailing Season

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

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Distance: 270.7 nautical miles

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This map shows the direct sea route from Piraeus to Marmaris. 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 17% longer than the 231 nm direct line, its heading turning from south to north-northeast. It is an international crossing between two countries.

Sea distance: 270.7 nm (501.3 km)
Direct line: 230.5 nm17% longer
Great-circle bearing: 105° (east-southeast)
Sea area: Aegean Sea
Geographic extent: 1.5° × 4.7°
Crossing: Cross-border · Same region
From: Piraeus (Greece) 37.9475, 23.6375
To: Marmaris (Turkey) 36.8511, 28.2700
Route basis: Sea-lane route

Passage timeEstimated passage time by cruising speed
Cruising speed	Duration
5 kn	2.3 days
8 kn	34 hours
10 kn	27 hours
12 kn	23 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 Piraeus to Marmaris Route

A medium ocean international sea route between Piraeus and Marmaris, this passage connecting a working port with a cruise destination in the Mediterranean region demands attention to the summer Meltemi — strong, dry northerlies that build through the afternoon.

The corridor within the same maritime region joins Piraeus, Greece to Marmaris, Turkey.

Navigation Tips

•Plan this medium ocean international leg in the Mediterranean region with attention to the summer Meltemi — strong, dry northerlies that build through the afternoon.
•Provisioning for this medium ocean passage in Mediterranean should account for regional supply networks.
•Allow time for entry formalities on this international leg within the same maritime region.
•Adapt safety equipment to Mediterranean 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 Piraeus to Marmaris by sea?

This is a medium ocean sea passage of about 270.7 nautical miles between Piraeus and Marmaris in Mediterranean.

How long does it take to sail from Piraeus to Marmaris?

Average voyage time on this medium ocean within the same maritime region leg of 270.7 nautical miles is 1.1 days – 2.3 days.

What's the best time to sail from Piraeus to Marmaris?

Aim for May-October for the calmest passage in Mediterranean; off-peak periods bring the summer Meltemi — strong, dry northerlies that build through the afternoon.

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