US numeric to FR jeans size
The short answer
By the formula, US numeric 10 is FR 42.
No brand chart we have checked prints both systems, so this table is the arithmetic alone. Treat it as the label convention, not a fit.
| US numeric | FR |
|---|---|
| 00 | 30 |
| 0 | 32 |
| 2 | 34 |
| 4 | 36 |
| 6 | 38 |
| 8 | 40 |
| 10 | 42 |
| 12 | 44 |
| 14 | 46 |
| 16 | 48 |
| 18 | 50 |
| 20 | 52 |