Equipment · Choosing skis
What ski length
do I need?
Your height is where the calculation starts, not where it ends. Ability, terrain and skiing style decide whether your ski ends up a few centimetres shorter or longer. Here is the system behind it.
No good ski fitter starts by measuring your height. The first three questions are: How do you ski? Where do you ski? And how confident are you doing it? Only then does the number on the tape measure come into play. Once you know that order, you also understand why two people of the same height can easily ski on lengths 15 cm apart, and both be right.
01The four levers
Ski length comes from the interplay of four factors, in this order of importance:
- Ability. Shorter skis are more forgiving, turn in more easily and demand less technique. The more confident you get, the more length you can handle, and the more stability you gain in return.
- Terrain. A day of short turns on groomed piste asks for something different from a powder descent or a climb on skins. The type of ski sets the base length, not just your height.
- Skiing style. Tight, playful turns call for short; long radii and high speed call for long. Skiers put it in three words: “length means speed.”
- Height & weight. The starting value for the calculation. If you are heavier than average for your height, lean towards the longer option; if you are lighter, towards the shorter one.
02Rule of thumb by ability
Your own height is the starting point. From there, add or subtract depending on your level:
| Level | Rule of thumb | Example at 170 cm | Reference point |
|---|---|---|---|
| Beginner | Height −15 to −20 cm | 150–155 cm | Ski reaches the chin |
| Intermediate | Height −5 to −10 cm | 160–165 cm | Ski reaches the eyes |
| Expert / racer | Height up to +5 cm | 170–175 cm | Ski reaches the forehead |
03Rule of thumb by ski type
The same person needs different centimetres on a touring ski than on a freeride ski. As a rough guide:
| Ski type | Rule of thumb | Character |
|---|---|---|
| Carving / piste ski | Height −5 to −10 cm | agile, light-footed in short turns |
| All-mountain | Height ±5 cm | a compromise between piste and off-piste |
| Freeride / powder | Height up to +10 cm | more float in deep snow, calmer at speed |
| Touring ski | Height −10 to −20 cm | lighter on the climb, easier to carry on your pack |
Weight & radius
Height only sets the rough frame. If you are heavier than average, a slightly longer and stiffer ski pays off; if you are lighter, a shorter one with a softer flex, otherwise you cannot load the ski properly. Independently of length, the sidecut radius determines how tight or wide the turns naturally come out. Only the two together decide how a ski really feels.
04Kids’ skis: the right size, not one to grow into
With children, it is tempting to buy a size up straight away. That is exactly what slows their progress: a ski that is too long is hard to steer, and the moments of success never come. As a guide:
| Age | Rule of thumb |
|---|---|
| 3–5 years | 20–30 cm shorter than their height |
| 6–10 years | 10–20 cm shorter, about shoulder height |
| Advanced teenagers | chest to shoulder height |
05Race skis: minimum lengths under the rules
If you race for FIS points, you do not choose the length freely: the rules set minimums per discipline and gender. Giant slalom adds a minimum radius; in slalom the radius is not regulated and only the minimum length counts. For orientation, the key values for the elite and adult category:
| Discipline | Men | Women | Minimum radius |
|---|---|---|---|
| Slalom (SL) | ≥ 165 cm | ≥ 155 cm | not specified |
| Giant slalom (GS) | ≥ 193 cm | ≥ 188 cm | ≥ 30 m |
For young racers, the DSV Schülercup (the German Ski Association’s youth series) sets its own guide values by age class, for both length and radius:
| Class | Slalom (length) | Giant slalom (length) | GS minimum radius |
|---|---|---|---|
| U12 | 135–150 cm | 155–180 cm | 14–23 m |
| U14 | 145–150 cm | 165–182 cm | 17–24 m |
| U16 | 150–158 cm | 175–188 cm | 21–30 m |
06The bottom line
Your height gives you the starting value, nothing more. If you are unsure, the shorter option usually serves you better: it is more forgiving and becomes fun sooner. If you already know exactly how and where you ski, you can pick the length and radius that suit your style. In the end, nothing helps as much as a short personal assessment, and that is exactly what we are here for.
Where to next
- Alpine skis in our shop: models and lengths at a glance.
- Choosing skis: which type of ski suits you, from alpine to cross-country.
- Binding mounting & boot sole length: what we need for mounting and which equipment works together.
Want personal advice?
Whether it is a beginner ski, an all-mountain set-up or a FIS race ski, we will work out the right length with you for your ability and the terrain you ski.