Windsurfing Calculators

Windsurfer's Weight
Kilograms Pounds
10knt
20knt
30knt
40knt
50knt
2m2
4m2
6m2
8m2
10m2
12m2
 Sail Size: 5.7 m2
Wind
knt km/h m/s mph
Sail Size
Sail Size
m2
Sail Size
Weight Adjusted
Unadjusted Underpower Ideal Wind Overpower
Freeride 33.6 cm 35.9 cm 34.2 cm 32.5 cm
Slalom 33.6 cm 35.9 cm 34.2 cm 32.5 cm
Wave 26.0 cm 27.8 cm 26.5 cm 25.1 cm
Formula 50.4 cm 53.9 cm 51.4 cm 48.8 cm
Weed 31.9 cm 34.1 cm 32.5 cm 30.9 cm
Fin Size Charts
Freeride Slalom Wave Formula Weed
4m2
6m2
8m2
10m2
20cm
30cm
40cm
50cm
60cm
 Fin Size: 33.6 cm
4m2
6m2
8m2
10m2
20cm
30cm
40cm
50cm
60cm
 Fin Size: 33.6 cm
2m2
3m2
4m2
5m2
6m2
7m2
15cm
20cm
25cm
30cm
35cm
 Fin Size: 26.0 cm
6m2
8m2
10m2
12m2
40cm
50cm
60cm
70cm
80cm
90cm
 Fin Size: 50.4 cm
4m2
6m2
8m2
10m2
20cm
30cm
40cm
50cm
60cm
 Fin Size: 31.9 cm