Marseille to La Spezia Sea Distance Calculator

Calculate the exact nautical distance from Marseille, France to La Spezia, Italy. Plan your maritime journey with our professional route calculator.

Distance: 249 nm; nautical miles
Under Sail: 2.1 days; at 5 knots
Under Power: 25 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: 249 nautical miles

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This map shows the direct sea route from Marseille to La Spezia. 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 25% longer than the 200 nm direct line, its heading turning from west-northwest to northwest. It is an international crossing between two countries.

Sea distance: 249 nm (461.2 km)
Direct line: 199.6 nm25% longer
Great-circle bearing: 74° (east-northeast)
Sea area: Mediterranean Sea
Geographic extent: 1.3° × 4.7°
Crossing: Cross-border · Same region
From: Marseille (France) 43.2965, 5.3698
To: La Spezia (Italy) 44.1000, 9.8333
Route basis: Sea-lane route

Passage timeEstimated passage time by cruising speed
Cruising speed	Duration
5 kn	2.1 days
8 kn	31 hours
10 kn	25 hours
12 kn	21 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 Marseille to La Spezia Route

Linking Marseille and La Spezia, this multi-day coastal cross-border crossing between two major harbours sits in the Mediterranean region — a passage shaped by conditions that shift with the season and locality, so consult an up-to-date marine forecast.

The lane links Marseille (France) and La Spezia (Italy), between neighbouring ports of the same region.

Navigation Tips

•A multi-day coastal cross-border passage in the Mediterranean region typically requires planning for conditions that shift with the season and locality, so consult an up-to-date marine forecast.
•A multi-day coastal leg in Mediterranean benefits from waypoint planning and verified fuel availability.
•Confirm operating hours and clearance procedures for this cross-border crossing between neighbouring ports of the same region, since rules vary by port.
•Verify that emergency equipment matches the demands of a multi-day coastal leg in Mediterranean.
•Documentation requirements differ for cross-border passages between neighbouring ports of the same region; verify cruising permits in advance.

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Frequently Asked Questions

How far is it from Marseille to La Spezia by sea?

Approximately 249 nautical miles separate Marseille and La Spezia by sea, making this a multi-day coastal leg in Mediterranean.

How long does it take to sail from Marseille to La Spezia?

Expect about 1 day – 2.1 days for a multi-day coastal run of 249 nautical miles between neighbouring ports of the same region.

What's the best time to sail from Marseille to La Spezia?

Peak sailing season here is May-October; year-round, Mediterranean routes contend with conditions that shift with the season and locality, so consult an up-to-date marine forecast.

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