US to EU Ski Boot Size Conversion
| US | Mondopoint (mm) |
|---|---|
| 6 | 240 |
| 7 | 250 |
| 8 | 260 |
| 9 | 270 |
| 10 | 280 |
| 11 | 290 |
| 12 | 300 |
Sizing conventions vary by brand and by cut — this table shows the standard published conversion. Always check the garment's own size chart when one is available. See how these tables are compiled.
Ski boots use Mondopoint sizing — a direct foot-length measurement in millimetres — so a US 9 boot converts to 270mm Mondopoint on the standard chart, the same literal-length approach seen on this site's Japanese and Korean shoe conversions.
Because ski boots are fitted much tighter than everyday shoes for control and warmth, measuring your actual foot length in millimetres (rather than converting your everyday US shoe size) is the recommendation most boot fitters give before a first purchase.
Frequently asked questions
Should I use my everyday US shoe size or measure my foot for ski boots?
Measure your foot length directly in millimetres if you can — ski boots are fitted snugger than everyday shoes, and boot fitters generally advise against converting your regular shoe size without a direct foot-length check.