Ski Binding DIN Setting Calculator
The ISO 11088 release-value chart, worked step by step — so you can sanity-check what the shop set, not set it yourself.
Do not set your own bindings from this page. It shows you where your number comes from and lets you sanity-check what a shop has done. The setting on the dial and the force the binding actually releases at are two different things, and only a calibrated test machine knows the second one. Have bindings mounted, set and tested by a certified technician.
Boot sole length is printed on the side of the heel of your boot, in millimetres. It is not your shoe size and it is not the Mondopoint number.
The release-value chart
| Code | ≤ 230 mm | 231–250 mm | 251–270 mm | 271–290 mm | 291–310 mm | ≥ 311 mm |
|---|---|---|---|---|---|---|
| A | 0.75 | 0.75 | 0.75 | — | — | — |
| B | 1.00 | 0.75 | 0.75 | — | — | — |
| C | 1.25 | 1.00 | 1.00 | 0.75 | — | — |
| D | 1.50 | 1.25 | 1.25 | 1.00 | — | — |
| E | 1.75 | 1.50 | 1.50 | 1.25 | — | — |
| F | 2.25 | 2.00 | 1.75 | 1.50 | 1.50 | — |
| G | 2.75 | 2.50 | 2.25 | 2.00 | 1.75 | — |
| H | 3.50 | 3.00 | 2.75 | 2.50 | 2.25 | 2.00 |
| I | 4.50 | 4.00 | 3.50 | 3.00 | 2.75 | 2.50 |
| J | 5.50 | 5.00 | 4.50 | 4.00 | 3.50 | 3.00 |
| K | 6.50 | 6.00 | 5.50 | 5.00 | 4.50 | 4.00 |
| L | 7.50 | 7.00 | 6.50 | 6.00 | 5.50 | 5.00 |
| M | 8.50 | 8.00 | 7.50 | 7.00 | 6.50 | 6.00 |
| N | 10.00 | 9.50 | 9.00 | 8.00 | 7.50 | 7.00 |
| O | 11.50 | 11.00 | 10.50 | 10.00 | 9.00 | 8.50 |
| P | — | 13.00 | 12.00 | 11.50 | 11.00 | 10.00 |
| Q | — | 15.00 | 14.00 | 13.00 | 12.00 | 11.00 |
| R | — | — | 16.00 | 15.00 | 14.00 | 13.00 |
How the number is actually reached
- Weight gives a starting code, A through M, because weight is the best single proxy for the force a leg can take.
- Height can only lower it. A shorter skier at the same weight has a shorter tibia, which is a shorter lever, so the binding must release at less force. Height never raises the code.
- Skier type raises it by one code for Type II and two for Type III. This is a choice about which risk you prefer, not a measurement of ability.
- Age lowers it again for skiers under 10 or 50 and over, because bone strength is lower at both ends of that range.
- Boot sole length picks the column. A longer boot is a longer lever arm on the binding, so the same code needs a lower dial setting to release at the same force.
What this cannot tell you
- This is a reference for understanding your setting, not an instruction to change it. Bindings must be set and tested on a calibrated machine by a certified technician — the number on the dial and the force the binding actually releases at are two different things, and only the machine knows the second one.
- A binding that has not been tested is an unknown quantity whatever the dial says. Springs weaken, mechanisms corrode, and screws loosen in the ski. Annual testing is the point of the exercise, not the number.
- Boot sole length matters as much as weight, which surprises people. The same skier code produces meaningfully different release values across the boot-length columns, so a setting copied from a friend with different boots is simply wrong.
- Type III+ settings above the chart exist and are deliberately not shown here. They are for racers and are set by technicians who have a reason.
How to use
- Enter weight, height, boot sole length, age and skier type.
- Read the indicative release value and, below it, exactly which rule moved your code and why.
- Take the number to a shop as a sanity check — never as an instruction to turn the screw yourself.
Frequently asked questions
Can I set my own bindings from this?
No. It shows where the number comes from so you can sanity-check what a shop has done. The setting on the dial and the force a binding actually releases at are different things, and only a calibrated test machine knows the second one. Bindings need a certified technician.
Why does height matter as well as weight?
Because a shorter skier at the same weight has a shorter tibia, which is a shorter lever, so the binding must release at less force. Height can only ever lower your code, never raise it — a tall light skier does not get a higher setting for being tall.
What is skier type?
A choice about which risk you prefer, not a measure of ability. Type I accepts more pre-release for less injury risk; Type III accepts more injury risk for fewer unwanted releases; Type II is everyone else, which is most people. Each step up raises the code by one.
Why does boot sole length change the number?
A longer boot is a longer lever arm on the binding, so the same skier code needs a lower dial setting to release at the same force at the leg. It is why a setting copied from a friend with different boots is simply wrong, even at identical weight.
Why does age lower the setting?
Bone strength is lower in skiers under 10 and in those aged 50 and over, so the standard drops the code by one at both ends of that range. It is applied after skier type, which is why an aggressive older skier does not simply cancel it out.
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