Remember: if you set up your boat, the map remembers all your routes, marks and bearings. Setting up a boat only takes a moment, and it makes your NauticMap experience much better.
The table shows calculated leeway in degrees for combinations of boat type, course and speed through the water, wind strength and wind direction. The model is used in "My route" and in course conversion tables. Cells are coloured by the size of the leeway – from green (small) to red (large).
Try examples
Sailing boat · moderate wind
⛵ Sailing boatCTW 090°STW 5 kn
Sailing boat · very low speed
⛵ Sailing boatCTW 090°STW 1 kn
Sailing boat · fast sailing NE
⛵ Sailing boatCTW 045°STW 7 kn
Motor boat · southbound
🚤 Motor boatCTW 180°STW 9 kn
Input
Leeway in degrees
Click a cell to see how we arrived at the leeway.
Wind
N
NE
E
SE
S
SW
W
NW
0° <1° 1–2° 2–4° 4–6° 6–9° 9–13° >13°
💡 How to use the table:
Find your wind strength (m/s) in the left column and the wind direction in the top row. The leeway in degrees gives the course correction in the course conversion table. Click a cell to see a worksheet with all intermediate steps.
