Ski Size Calculator

Find your recommended downhill ski length from your height, weight, and ability, using the standard chin-to-forehead sizing rule.

Quick Facts

Method
Chin-to-forehead rule: ski length ≈ 85–95% of your height
Adjusted down for beginners and lighter skiers, up for experts, powder, and heavier skiers.

Your Results

Calculated
Recommended ski length
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Best single starting length
Suggested range
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Shorter (playful) to longer (stable)
% of your height
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Where this ski falls on the rule

Ready

Enter your height and pick your ability and style, then calculate.

How ski length is sized

Downhill (alpine) skis are sized by their length in centimeters. The long-standing rule of thumb is the "chin-to-forehead" test: stand a ski vertically on its tail, and the tip should reach somewhere between your chin and the top of your head. In numbers, that puts your recommended length at roughly 85% to 95% of your height. This calculator applies that rule and then adjusts for your ability level, the terrain you ski, and your weight.

The core formula it uses is:

Ski length (cm) ≈ height (cm) × factor + weight adjustment

where the base factor is about 0.86 for beginners (chin height), 0.90 for intermediates (nose to chin), and 0.94 for advanced skiers (forehead to top of head). Groomed carving skis trim the factor slightly (about −0.01), all-mountain skis leave it unchanged, and powder or off-piste skis add about +0.02 because extra length increases float in soft snow. The weight adjustment nudges the result up for skiers heavier than average for their height and down for lighter skiers, capped at about ±3 cm.

Why the right length matters

Length changes how a ski behaves. Shorter skis are lighter, quicker to turn, more forgiving, and easier to control at low speed — ideal for beginners, lighter skiers, and tight groomed runs. Longer skis track straighter, stay stable at speed, and float better in powder, but they demand more strength and technique to turn. Choosing near the middle of your range gives the best all-round balance; going shorter favors playfulness and control, going longer favors speed and stability.

Typical reference points

Using the all-mountain, intermediate setting (factor ≈ 0.90), common heights map to roughly these lengths:

  • 160 cm (5'3") skier → about 144 cm ski (range ~139–149 cm)
  • 170 cm (5'7") skier → about 153 cm ski (range ~148–158 cm)
  • 180 cm (5'11") skier → about 162 cm ski (range ~157–167 cm)
  • 190 cm (6'3") skier → about 171 cm ski (range ~166–176 cm)

Beginners typically take 5–10 cm off these figures; advanced skiers and powder specialists add a similar amount. Skis are usually sold in fixed increments (roughly every 5–7 cm), so pick the closest available size to your target.

Frequently Asked Questions

What length ski should I get for my height?
Stand the ski on its tail: the tip should reach between your chin and the top of your head, which is about 85–95% of your height. A 175 cm (5'9") skier lands around 150–166 cm. Beginners pick the shorter end for control, advanced skiers the longer end for stability.
Should I size down as a beginner?
Yes. Beginners benefit from skis at roughly chin height (about 85–88% of height). Shorter skis turn more easily, are more forgiving of mistakes, and are easier to manage at slow speeds while you learn to control edge grip and turn shape.
Do heavier or lighter skiers change the size?
Weight matters because it affects how much a ski flexes. If you are heavier than average for your height, size up a couple of centimeters for more support and stability; if you are notably lighter, size down so the ski flexes and turns as intended. This tool applies that adjustment automatically, capped at about ±3 cm.
How does powder or off-piste skiing affect length?
Longer skis distribute your weight over more surface area, so they float better in deep snow and stay stable when charging through variable off-piste terrain. Powder and freeride skis are typically sized 5–10 cm longer than an all-mountain ski for the same skier, which is why this calculator adds length for the powder style.

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