Barcelona to Alger Sea Distance Calculator

Calculate the exact nautical distance from Barcelona, Spain to Alger, Algeria. Plan your maritime journey with our professional route calculator.

Distance: 289 nm; nautical miles
Under Sail: 2.4 days; at 5 knots
Under Power: 29 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.

Interactive Route Map

Loading map...

Distance: 289 nautical miles

🧮 Open Interactive Calculator

This map shows the direct sea route from Barcelona to Alger. 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 3% longer than the 279 nm direct line, its heading turning from south-southeast to southwest. It is an international crossing between two countries.

Sea distance: 289 nm (535.2 km)
Direct line: 279.4 nm3% longer
Great-circle bearing: 171° (south)
Sea area: Mediterranean Sea
Geographic extent: 4.6° × 1.0°
Crossing: Cross-border · Same region
From: Barcelona (Spain) 41.3658, 2.1583
To: Alger (Algeria) 36.7667, 3.0667
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 Barcelona to Alger Route

The maritime route from Barcelona to Alger 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 Barcelona in Spain with Alger in Algeria.

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.

More Routes from Barcelona

Frequently Asked Questions

How far is it from Barcelona to Alger by sea?

The sea distance from Barcelona to Alger is approximately 289 nautical miles — a overnight offshore passage in Mediterranean.

How long does it take to sail from Barcelona to Alger?

A overnight offshore between neighbouring ports of the same region crossing of 289 nautical miles typically takes 1.2 days – 2.4 days, depending on vessel and weather.

What's the best time to sail from Barcelona to Alger?

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