Antwerp to London Sea Distance Calculator

Calculate the exact nautical distance from Antwerp, Belgium to London, United Kingdom. Plan your maritime journey with our professional route calculator.

Distance
186.8 nm
nautical miles
Under Sail
37 hours
at 5 knots
Under Power
19 hours
at 10 knots
Best Time
May-September
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: 186.8 nautical miles
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This map shows the direct sea route from Antwerp to London. 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 11% longer than the 169 nm direct line, its heading turning from northwest to west. It is an international crossing between two countries.

Sea distance
186.8 nm (345.9 km)
Direct line
169 nm11% longer
Great-circle bearing
277° (west)
Geographic extent
0.3° × 4.5°
Crossing
Cross-border · Same region
From
Antwerp (Belgium) 51.2194, 4.4025
To
London (United Kingdom) 51.5000, -0.0833
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn37 hours
8 kn23 hours
10 kn19 hours
12 kn16 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 Antwerp to London Route

A medium-length coastal international sea route between Antwerp and London, this passage connecting two major commercial ports in the Northern Europe region demands attention to tidal streams and seasonal ice in the higher latitudes.

The corridor within the same maritime region joins Antwerp, Belgium to London, United Kingdom.

Navigation Tips

  • •Plan this medium-length coastal international leg in the Northern Europe region with attention to tidal streams and seasonal ice in the higher latitudes.
  • •Provisioning for this medium-length coastal passage in Northern Europe should account for regional supply networks.
  • •Allow time for entry formalities on this international leg within the same maritime region.
  • •Adapt safety equipment to Northern Europe conditions for this medium-length coastal crossing.
  • •For a international crossing within the same maritime region, ensure clearance papers and visas are in order before departure.

Frequently Asked Questions

How far is it from Antwerp to London by sea?

This is a medium-length coastal sea passage of about 186.8 nautical miles between Antwerp and London in Northern Europe.

How long does it take to sail from Antwerp to London?

Average voyage time on this medium-length coastal within the same maritime region leg of 186.8 nautical miles is 19 hours – 37 hours.

What's the best time to sail from Antwerp to London?

Aim for May-September for the calmest passage in Northern Europe; off-peak periods bring tidal streams and seasonal ice in the higher latitudes.

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.

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