“What length ski should I get?” is the most common question we hear at the shop. And the most common answer on the internet — “stand next to the ski, it should come up to between your chin and your forehead” — is a starting point, not an answer. Height gets you in the ballpark. Weight, ability, terrain preference, and ski width determine where you actually land.
The Chin-to-Forehead Rule: Where It Helps, Where It Fails
The height-based guideline has been around for decades, and there's a reason it persists: it's simple and it gets beginners reasonably close. If you're an average-weight intermediate skier buying an all-mountain ski in the 85–95mm waist range, chin-to-forehead will serve you fine.
But it falls apart at the edges. A 6'2” skier who weighs 150 lbs has completely different needs than a 6'2” skier who weighs 230 lbs. A 5'6” expert who charges hard in Heather Canyon needs a different length than a 5'6” first-year skier who sticks to groomed blues. Height alone can't account for any of that.
Height tells you where to start looking. Weight, ability, terrain, and ski width tell you where to end up.
Weight: The Factor Most People Ignore
Weight is arguably more important than height when choosing ski length, because weight determines how much pressure you put on the ski. More pressure means more flex, more edge engagement, and more energy in the turn. A heavier skier on a too-short ski will overpower it — the ski washes out in turns, chatters at speed, and feels unstable. A lighter skier on a too-long ski can't engage the flex pattern properly — the ski feels dead and hard to turn.
General guidance:if you're significantly heavier than average for your height, size up one length from where height alone would put you. If you're lighter than average, size down. Most manufacturers publish recommended weight ranges for each length in their size charts — those ranges are more useful than height charts.
Ability Level: Beginners Shorter, Experts Longer
This one is straightforward. Shorter skis are easier to turn and more forgiving at slower speeds. Longer skis are more stable at high speeds and in variable conditions, but they demand better technique to manage.
Beginner to Low-Intermediate
Aim for the lower end of the range — around chin height or slightly below. A shorter ski lets you focus on learning turn initiation and edge control without fighting the equipment. Speed isn't your priority yet; maneuverability is.
Intermediate
The middle of the range works well — roughly nose to eyebrow height. You've got enough technique to handle a longer ski, and you'll appreciate the added stability as you push your speed and start exploring off-piste terrain.
Advanced to Expert
The upper end of the range, from eyebrow to forehead or even above. At this level, you're generating enough force to drive a longer ski through turns, and you need the stability that comes with length. Many expert skiers — especially those skiing aggressively in variable conditions — go longer than the height chart suggests.
Terrain: What You Ski Changes What You Need
Park and Freestyle
Park skiers typically go shorter — a few centimeters below chin height is common. Shorter skis are lighter, easier to spin, and more forgiving on landings. If you're primarily hitting rails and small features, even shorter can work. If you're sending big jumps, you'll want something closer to your standard all-mountain length for stability on landings.
All-Mountain
Right in the middle of the recommended range. You need a ski that can handle groomers, light powder, crud, and bumps without being too long for trees or too short for open bowls. This is where the chin-to-forehead guideline works best.
Powder and Big Mountain
Longer, generally forehead height or above. More length means more surface area, which means more float in deep snow. Powder skis also tend to have significant rocker in the tip and tail, which shortens the effective edge length — so a 186cm powder ski doesn't ski as “long” as a 186cm carving ski.
Carving and Frontside
Narrower frontside skis have more effective edge relative to their overall length, so they can ski a touch shorter without losing stability. A dedicated carving ski at nose height will feel plenty long on groomed runs.
Waist Width Affects Effective Length
This is the factor that trips up most people doing online research. A wider ski at the same length has more surface area than a narrower ski. A 100mm waist ski at 176cm puts significantly more material under your feet than an 84mm waist ski at 176cm. More surface area means more float, more stability, and more effective edge engagement.
In practical terms: if you're moving from a narrow all-mountain ski (say, 85mm) to a wider one (say, 100mm), you can often go a few centimeters shorter and get a similar ride feel. This is why modern wide all-mountain skis often have shorter recommended lengths than narrower skis for the same skier weight.
Read our PNW waist width guide for more on how width affects your ski choice in Pacific Northwest conditions.
Common Mistakes
“I'm 6'2” So I Need 190cm”
No. Being tall doesn't automatically mean you need the longest ski available. A tall, lightweight, intermediate skier might be perfectly served at 177–182cm. The “tall = long ski” assumption leads to more oversized purchases than any other misconception.
Buying Too Long
This is far more common than buying too short. An oversized ski is hard to turn, exhausting to ski all day, and actively holds back your progression. If you're between two sizes and you're not an advanced-to-expert skier, go with the shorter option. You'll have more fun.
Internet Echo Chambers
Forum advice skews toward experienced skiers. When someone online says “I ski 188 and it's perfect,” they might be a 200 lb expert who charges at speed. That doesn't mean 188 is right for you. Take online recommendations with a grain of salt and consider the source.
Ignoring the Manufacturer's Size Chart
Every ski has a recommended size chart published by the manufacturer, usually based on weight and ability. These charts exist because the engineers who designed the ski know how it performs at different lengths. They're not perfect, but they're a better starting point than a generic height chart.
A Practical Decision Framework
Here's how we walk customers through ski length at the shop:
- Start with the manufacturer's size chart. Find your weight. That gives you a recommended length or a range of two lengths.
- Adjust for ability. Beginner or cautious intermediate? Go with the shorter option. Aggressive or expert? Go with the longer one.
- Adjust for terrain. Mostly park? Shorter. Mostly powder? Longer. All-mountain? Stay in the middle.
- Cross-check against height.If the result puts you wildly outside the chin-to-forehead range, reconsider — but small deviations are totally normal.
If you're still unsure, come into the shop. We size skis every single day, and a five-minute conversation will get you dialed in faster than hours of internet research.
Next Steps
Once you've narrowed down your length, check our full size chart guidefor brand-specific charts. If you're new to skiing, our best beginner skis for 2026guide covers models that are forgiving at a range of lengths. And if you're shopping for Pacific Northwest conditions specifically, our PNW waist width guide will help you pick the right width to pair with your length.