Choosing the right kite keeps you safe and having fun: too big and you’re overpowered; too small and you sink. Heavier riders need bigger kites, stronger wind smaller ones.
How to use the Kiteboarding Kite Size Calculator
- Find
- Rider weight
- Wind speed
- Kite size (m²)
- Board
- Kite type
Always take lessons and check local conditions; these are rough guidelines. Everything is calculated in your browser.
How it works
Choose what to find, enter your weight and the wind speed or kite size, and your board type.
Tips
- Check local conditions and safety rules before going out.
- Start with conservative equipment choices and adjust with experience.
- Every field has its own unit menu.
- Everything is calculated in your browser.
Common mistakes to avoid
- Using estimates instead of a proper check in the water.
- Mixing feet and metres, or knots and km/h.
- Overestimating your skill in strong wind.
Inputs explained
| Field | What to enter |
|---|---|
| Find | Choose one: Kite size for the wind, Wind range for my kite |
| Rider weight | Units: kg, lb |
| Wind speed | Units: kn, km/h, mph, m/s |
| Kite size (m²) | A number |
| Board | Choose one: Twin-tip, Surfboard / directional, Hydrofoil, Big light-wind board |
| Kite type | Choose one: Inflatable (LEI / bow / C), Foil kite (ram-air), Trainer kite (learning) |
What each result means
- Wind (knots) = [Wind speed]÷0.514444
- Recommended kite size = [Rider weight]×2.2÷([Wind speed]÷0.514444)×[Board]×[Kite type]
- Ideal wind for your kite = [Rider weight]×2.2×[Board]×[Kite type]÷[Kite size (m²)]
- Usable from about = [Rider weight]×2.2×[Board]×[Kite type]÷[Kite size (m²)]×0.8
- up to about = [Rider weight]×2.2×[Board]×[Kite type]÷[Kite size (m²)]×1.3
Example values
How the main result changes when Rider weight changes and everything else stays at the example values above:
| Rider weight (kg) | Recommended kite size (m²) |
|---|---|
| 37.5 | 4.6 |
| 56.25 | 6.9 |
| 75 | 9.2 |
| 93.75 | 11.5 |
| 112.5 | 13.8 |
| 150 | 18.3 |
Formula
Kite size (m²) = weight (kg) × 2.2 ÷ wind (knots) × board factor · Ideal wind = weight × 2.2 ÷ size
Worked example
Inputs — Find: Kite size for the wind; Rider weight: 75 kg; Wind speed: 18 kn; Board: Twin-tip; Kite type: Inflatable (LEI / bow / C).
Results — Wind (knots) = 18 kn; Recommended kite size = 9.2 m².
Key terms
- LEI
- Leading-edge inflatable kite.
Frequently asked questions
What size kite for a beginner?
Usually 9–12 m² for an average adult in 15–20 knots.
How much wind do I need?
Most riders need at least 12 knots; hydrofoils work in 8–10.
Should I buy a bigger kite?
Start with a mid-size kite for your local average wind.
Is kiteboarding dangerous?
It can be – take lessons from a certified school.