DIN setting estimator

How the ISO 11088 DIN lookup works

DIN is the standardized release-value scale for ski bindings — a higher number means the binding holds the boot with more force before releasing (DIN Calculator). The setting is not a single formula; it is a four-step lookup defined by ISO 11088 (the alpine-ski-binding release-torque selection standard) that every major binding brand — Marker, Salomon, Look, Tyrolia, Atomic, Rossignol, and Fischer — uses identically (DIN Calculator, Calculover).

1. Base skier code. Weight (and, for heavier skiers, height) is matched to a letter code from A through M (DIN Chart, Acton Cycles).
2. Skier type adjustment. The code shifts one step toward A for cautious skiers (Type I) or one step toward M for aggressive skiers (Type III) (Mechanics of Sport).
3. Age adjustment. Skiers under 10 or over 50 shift one further step toward A (DIN Chart).
4. Boot-sole cross-reference. The adjusted code is read against the boot sole length column to get the DIN (DIN Chart).

When weight and height point to different codes, the chart uses the lower code (toward A), which is the more conservative value (DIN Calculator, Calculover). Weight is the primary factor; height only moves the code when a skier is short relative to their weight (Calculover).

The A–M skier code table

The ISO 11088 base codes run from A (lightest) to M (heaviest). The full chart below shows the DIN at each code for every boot-sole-length band; values are taken from the published chart and are consistent across sources (DIN Chart, Acton Cycles, Mechanics of Sport).

Weight bands and DIN values per the ISO 11088 indicative chart (DIN Chart). Codes N, O, and P exist only for aggressive (Type III) skiers at the top of the chart and can reach DIN 13.0; race bindings may go higher and require a race technician (Powder7).

Skier type adjustments

Skier type moves the base code one row before the boot-sole lookup. The standard definitions are:

• Type I (cautious / beginner) — skis gently and conservatively; shifts one code toward A (lower DIN, releases more easily) (Mechanics of Sport).
• Type II (moderate / intermediate) — recreational skier on most runs; no adjustment, uses the base code (Mechanics of Sport).
• Type III (aggressive / advanced) — fast and forceful on steep terrain; shifts one code toward M (higher DIN, releases less easily) (Mechanics of Sport).

The row-shift method is more accurate than a simple ±1 DIN tweak because each sole-length column shifts by a different amount (DIN Chart).

Age adjustments

After the skier-type shift, skiers under 10 or over 50 move one further row toward A — a conservative reduction because younger and older skiers' physiology makes lower release values safer (DIN Chart). Applied together, a young cautious skier (Type I, under 10) can shift two rows toward A from their base code.

Why boot sole length changes the DIN

A longer boot sole creates more leverage on the binding, so an identical skier with a longer sole gets a lower DIN than one with a shorter sole — which is why the chart cross-references code against sole length rather than using a single number (DIN Chart, DIN Calculator). Read the sole length (in millimeters) printed on the side or heel of the boot; entering the wrong value gives a meaningless estimate.