Wing foil size calculator by weight and wind
Estimate a wing size from your weight and wind speed. Use the result as a starting point, then check your equipment’s wind-range chart and local conditions.
Find today's wing.
Wing size chart by weight and wind
Progressing-level sizes from the same formula. Learning? Add half a metre to a metre.
| Wind | 60 kg rider | 75 kg rider | 90 kg rider |
|---|---|---|---|
| 10 kt | 6.5 m | 8 m | 9 m+ |
| 12 kt | 5.5 m | 6.5 m | 8 m |
| 15 kt | 4.0–4.5 m | 5.0–5.5 m | 6.5 m |
| 18 kt | 3.5 m | 4.5 m | 5.5 m |
| 20 kt | 3.0 m | 4.0 m | 4.5–5 m |
| 25 kt | 2.5 m | 3.0 m | 4.0 m |
How wing sizing actually works
This calculator estimates wing area using 1.05 × weight (kg) ÷ wind (knots). The learning setting adds 15%; the advanced setting subtracts 10%. These are rough adjustments, not a model-specific recommendation. Check your wing manufacturer’s chart and account for your board, foil and local conditions.
Two things the formula can't see: your board and your foil. A board at weight-plus-30-litres floats you through the clumsy phase and flatters a smaller wing; a sinker demands more canopy while you're underwater building speed. Likewise a big low-aspect front wing lifts at lower speed and forgives an undersized hand wing. When your setup changes, re-run the number. Threshold-by-threshold guidance lives in how much wind you need to wing foil, and the wing foiling alarm page covers the 12–22 kt sweet spot most wingers chase.
For kitesurfing, use the kite size calculator for a separate equipment estimate. The wind speed converter converts between common units.
Wing size FAQ
What size wing do I need for 15 knots?
How do I calculate wing foil size?
What's a good two-wing quiver?
Does board size change what wing I need?
Wing picked. Now don't miss the window.
Set a free wind alarm for a supported station near your wing foiling spot. Check notification permissions and local conditions before heading out.
