Marseille to Tunis Sea Distance Calculator

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

Distance: 490.5 nm; nautical miles
Under Sail: 4.1 days; at 5 knots
Under Power: 2 days; 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.

Interactive Route Map

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Distance: 490.5 nautical miles

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This map shows the direct sea route from Marseille to Tunis. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a near-direct coastal passage: the navigable route runs 9% longer than the 450 nm direct line, its heading turning from west-northwest to west-southwest. It is an international crossing between two countries.

Sea distance: 490.5 nm (908.4 km)
Direct line: 450 nm9% longer
Great-circle bearing: 148° (south-southeast)
Sea area: Mediterranean Sea
Geographic extent: 6.5° × 5.2°
Crossing: Cross-border · Same region
From: Marseille (France) 43.2965, 5.3698
To: Tunis (Tunisia) 36.8189, 10.3056
Route basis: Sea-lane route

Passage timeEstimated passage time by cruising speed
Cruising speed	Duration
5 kn	4.1 days
8 kn	2.6 days
10 kn	2 days
12 kn	41 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 Tunis Route

The maritime route from Marseille to Tunis is a overnight offshore cross-border passage between two major harbours in the Mediterranean region. Mariners on this leg typically prepare for conditions that shift with the season and locality, so consult an up-to-date marine forecast.

This route runs between neighbouring ports of the same region, connecting Marseille in France with Tunis in Tunisia.

Navigation Tips

•On this overnight offshore cross-border crossing in the Mediterranean region, prepare for conditions that shift with the season and locality, so consult an up-to-date marine forecast, particularly in peak season.
•For a overnight offshore route, plan fuel and provisioning around the Mediterranean region — calculate consumption with our tool.
•Verify port-entry requirements at both ends of this cross-border route between neighbouring ports of the same region before you depart.
•Check safety gear suited to Mediterranean conditions before a overnight offshore passage — life rafts, EPIRB, and current charts.
•Carry passports, vessel documents, and crew lists matched to this cross-border route between neighbouring ports of the same region.

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Frequently Asked Questions

How far is it from Marseille to Tunis by sea?

The sea distance from Marseille to Tunis is approximately 490.5 nautical miles — a overnight offshore passage in Mediterranean.

How long does it take to sail from Marseille to Tunis?

A overnight offshore between neighbouring ports of the same region crossing of 490.5 nautical miles typically takes 2 days – 4.1 days, depending on vessel and weather.

What's the best time to sail from Marseille to Tunis?

The best time for this route in Mediterranean is May-October, when conditions are most favourable; expect conditions that shift with the season and locality, so consult an up-to-date marine forecast outside that window.

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