Free digital nautical chart

Get to know your chart and plan your trip

A modern interactive nautical chart for trip planning and teaching

Autoroute Finds your route automatically
Click on seamarks Get info on every seamark and harbour
Live light characteristic See the real light
Notices to Mariners Navigational warnings
3D flyover Aerial photos to help you approach harbours
Course conversion table As for the Duelighedsbevis
Current triangle As for the Yachtskipper
Print Passage plan as PDF
Windy Wind and waves along the route
Play the route Sail the trip from home
Depth chart Contours and colours
Satellite Aerial photo
Canals Europe's inland waterways
AIS Learn about nearby vessels
GPX Import and export GPX files from/to your plotter

Tools

Other tools on

Toolbox

Seamarks

Learn the 12 types of seamarks directly on the chart, or read about buoyage and buoys.

Choose

Seamarks on the chart Guide to buoyage and buoys

Navigation lights

Learn navigation lights and day shapes in 3D. Rotate the vessel, switch between day and night, and see exactly which lights you see – and what they mean.

Course conversion table

Convert the course from chart to compass — or the other way round. Current, leeway, variation and deviation step by step.

Choose

Chart → compass Compass → chart

Current triangle

Calculate the course correction for current — both chart to compass and compass to chart.

Choose

Chart → compass Compass → chart

Wind model

See how wind and leeway affect your course, and calculate the correct course to steer.

Bearings

Fix your position with cross bearings. Convert compass bearings to chart directions and find the fix on the chart.

Choose

Cross bearing fix Running fix

Speed triangle

Calculate distance, speed and time interactively. Enter two known values – the third is calculated automatically.

Fuel triangle

Plan fuel consumption, flow and running time. Never run out of fuel again.

Checklists

Go through safety, navigation and the boat documents before you weigh anchor.

Choose

Safety Navigation Boat documents

Variation

Click on the map to find the variation – the magnetic variation for any point in Northern Europe.

Deviation

Look up the compass deviation for any course steered. Linear interpolation straight from the deviation table — the same method used in the course conversion tables and My route.