Kokkola to Kotka Sea Distance Calculator

Calculate the exact nautical distance from Kokkola, Finland to Kotka, Finland. Plan your maritime journey with our professional route calculator.

Distance
515.8 nm
nautical miles
Under Sail
4.3 days
at 5 knots
Under Power
2.1 days
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.

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Distance: 515.8 nautical miles
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This map shows the direct sea route from Kokkola to Kotka. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a markedly indirect coastal passage: the navigable route runs 123% longer than the 231 nm direct line, its heading turning from north-northwest to north.

Sea distance
515.8 nm (955.2 km)
Direct line
231.3 nm123% longer
Great-circle bearing
150° (south-southeast)
Geographic extent
4.4° × 7.1°
Crossing
Domestic · Same region
From
Kokkola (Finland) 63.8500, 23.0167
To
Kotka (Finland) 60.4667, 26.9667
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn4.3 days
8 kn2.7 days
10 kn2.1 days
12 kn43 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 Kokkola to Kotka Route

Linking Kokkola and Kotka, this extended offshore within one country crossing between two major harbours sits in the Northern Europe region — a passage shaped by persistent low cloud and reduced visibility on shoulder-season passages.

The lane links Kokkola (Finland) and Kotka (Finland), between neighbouring ports of the same region.

Navigation Tips

  • •A extended offshore within one country passage in the Northern Europe region typically requires planning for persistent low cloud and reduced visibility on shoulder-season passages.
  • •A extended offshore leg in Northern Europe benefits from waypoint planning and verified fuel availability.
  • •Confirm operating hours and clearance procedures for this within one country crossing between neighbouring ports of the same region, since rules vary by port.
  • •Verify that emergency equipment matches the demands of a extended offshore leg in Northern Europe.
  • •Documentation requirements differ for within one country passages between neighbouring ports of the same region; verify cruising permits in advance.

Frequently Asked Questions

How far is it from Kokkola to Kotka by sea?

Approximately 515.8 nautical miles separate Kokkola and Kotka by sea, making this a extended offshore leg in Northern Europe.

How long does it take to sail from Kokkola to Kotka?

Expect about 2.1 days – 4.3 days for a extended offshore run of 515.8 nautical miles between neighbouring ports of the same region.

What's the best time to sail from Kokkola to Kotka?

Peak sailing season here is May-September; year-round, Northern Europe routes contend with persistent low cloud and reduced visibility on shoulder-season passages.

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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