How this calculator works
The ISO 11088 chart assigns a skier code from body weight and, for adults over 41 kg, height. The lower of the two codes is used. Skier type then moves the code: type II goes one row down and type III two rows down, which raises the release value. Skiers under 10 or over 50 move one row up, lowering the release value. The boot sole length selects the column, because a longer boot creates more leverage on the binding. The result is an indicator value for the binding, plus the twist and forward-lean inspection ranges for that skier code. The chart is a starting point: a technician sets and release-tests the binding on a calibration device.
Formula
Skier code = the lower of the weight code and height code, then +1 for type II, +2 for type III and -1 for age under 10 or over 50. The release value comes from the chart row for that code and the column for the boot sole length band. Torque ranges are read from the matching row of the inspection table.
Worked example
A 30-year-old who is 175 cm tall and weighs 75 kg: the weight code is K and the height code is K, so the base code is 11. Type II raises it to 12, or row L, and the age adjustment does not apply. A 305 mm boot sole falls in the 291 to 310 mm column, where row L gives a release value of 6.5. The inspection range is 50 to 67 N-m for twist and 194 to 271 N-m for forward lean.
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Frequently asked questions
Can I set my own bindings from this number?
No. The DIN indicator is only one part of the adjustment. The binding must be mounted to the correct standard, the boot checked for compatibility, and the release tested with a calibrated device. An incorrect setting can fail to release or release too easily, so have a qualified shop do the work.
Why does the boot sole length matter?
The sole acts as a lever. A longer sole produces more torque at the binding for the same force at the toe or heel, so the chart reduces the release value as the sole gets longer.
What does skier type mean?
Type I is for cautious skiing at low speed, type II for moderate skiing, and type III for aggressive or fast skiing. Choose the type that matches how you actually ski most of the time, not an occasional best run.
Why do children and older skiers get a lower value?
The chart lowers the setting for skiers under 10 and over 50 because their bones and recovery differ, and a lower release may reduce injury risk. The chart still requires the shop to check the final setting.