Sail
Sail Size
Wind Speed
Tap the star to mark favorites. In PRO you can build your own quiver. Tap here for notes.
Board
Volume (L)
–L
Width (cm)
–cm
Length (cm)
–cm
Skill Level
Discipline
Recommended volume for 
Volume (L)
–L
Typical width
–
My board — suitability check
Guidelines; ideal size also depends on skill and conditions. Tap for details.
Fin
Sail Size m²
Fin Type
Fin Size
Standard (cm)
–cm
Weight Adjusted
Underpowered (cm)
–cm
Ideal Wind (cm)
–cm
Overpowered (cm)
–cm
Guideline. In PRO you can enter any sail area; New uses modern fin sizing. Tap for details.
Kite
Kite Size
Wind Speed
Wind Speed = ideal; small numbers = min … max. In PRO, build your own quiver. Tap for notes.
Board
Area (cm²)
–
Width (cm)
–cm
Length (cm)
–cm
Modern twintip quiver for  kg (length × width)
My board — check (twintip)
For twintip boards. Tap for details.
Wing
Wing Size
Wind Speed
Wind Speed = ideal (wing held/parked). Small numbers = workable range. Wing-foil is a modern discipline (after ~2016). Tap for notes.
Board
Wingfoil board volume for 
Volume (L)
–L
Typical width
–
My board — check
Wingfoil boards are short and wide. Beginners need floatation to balance before foiling; advanced riders go near-sinker. Tap for details.
Settings
PRO
Mode
Skill Level
Affects sail/wing sizing and board volume (Adv mode).
Discipline (board)
Board volume in Adv mode: classic windsurf or foil.
General
Language
Theme
Calculator Mode
Wind Speed Unit
Weight Unit
Sailor Weight
Every recommendation on every screen is calculated from this number.