Ski Length Calculator for Kids — Sizing Guide by Age and Height
Find the right ski length for kids based on height, age, and skill level. Includes a kids' ski size chart and tips for choosing children's ski length.
Sizing skis for children is simpler than for adults because the goal is always the same: keep it short and manageable. A child's ski should reach between their chest and chin when stood upright. Never let a child ski on skis that are too long — the risk of falls, knee strain, and frustration far outweighs any perceived benefit.
For adult ski sizing, use the Ski Length Calculator.
Kids' Ski Length Chart by Height
This is the primary reference. Always measure the child's height before buying or renting.
| Child's Height | Ski Length | Notes |
|---|---|---|
| 90–100 cm | 70–85 cm | First-timers, typically age 3–4 |
| 100–110 cm | 85–95 cm | Learning to turn, typically age 4–5 |
| 110–120 cm | 95–105 cm | Linking turns, typically age 5–7 |
| 120–130 cm | 105–115 cm | Comfortable on beginner slopes, age 6–8 |
| 130–140 cm | 115–125 cm | Groomed green and easy blue, age 8–10 |
| 140–150 cm | 125–135 cm | Progressing skier, age 10–12 |
| 150–160 cm | 135–150 cm | Approaching teen sizing, age 12–14 |
At 160 cm height and above, children can transition to adult sizing. Use the Ski Length Calculator for teenagers.
Kids' Ski Length by Age (Approximate)
Age alone is a rough guide because children vary enormously in height and body weight. Always cross-reference with the height chart above.
| Age | Approximate Ski Length | Skill Context |
|---|---|---|
| 3–4 years | 65–80 cm | First ever experience, parent-assisted |
| 5–6 years | 80–95 cm | Learning to stop and steer |
| 7–8 years | 95–110 cm | Linking turns independently |
| 9–10 years | 110–120 cm | Groomed blue runs |
| 11–12 years | 120–135 cm | Building speed and confidence |
| 13–14 years | 135–155 cm | Transitioning toward adult sizing |
Does Weight Affect Kids' Ski Length?
Yes — more so than for adults. A heavier child exerts more pressure on the ski, which affects how the ski flexes underfoot.
For children:
- Lighter than average for height: Choose the lower end of the range
- Average weight: Middle of the range
- Heavier than average: Upper end of the range, or consult the ski shop staff for flex recommendations
Many ski shops carry junior skis in "light," "medium," and "stiff" flex options. A heavier child benefits from a stiffer flex more than from extra length.
The Chin Rule — Why It Works
The "chest to chin" rule works well for children because:
- Children are learning fundamental balance and turning mechanics
- Short skis pivot easily, which rewards correct movement patterns
- Children are not skiing at speeds that require the stability of longer skis
- Falls happen frequently while learning — shorter skis are easier to recover from and less likely to cause knee injury
The most common mistake parents make is sizing skis too long because they think the child will "grow into them." This approach makes learning harder and increases injury risk.
Renting vs. Buying Kids' Skis
For children under 10, renting is almost always the better option. Children's feet grow quickly, and ski sizing must be updated regularly — often every season. Rental shops size skis correctly by height and weight.
If you decide to buy, size for the current season only. Do not buy skis that are "a little long so they last longer."
When to Move to Adult Sizing
When a child reaches approximately 150–160 cm in height and is skiing confidently on groomed terrain, they can transition to adult-sized equipment. At this point:
- Use the standard adult ski length formula (height − 10 to 15 cm for intermediate level)
- Consider junior/women's skis if the child is on the lighter end of the weight range
- A ski shop fitting is worth doing at this transition point
Related Tools and Guides
- Ski Length Calculator — full adult ski length calculator
- What Ski Length is Best for Beginners? — beginner adult sizing guide
- Ski Length Chart by Height — reference tables for all levels
- Skiing Calorie Calculator — how many calories does skiing burn?