France
Ring sizes in France.
French sizes are normally quoted as the full ISO inside circumference in millimetres. A minority of retailers still use an older form that subtracts 40, so a “taille 12” may mean the same ring as a “taille 52” — worth confirming before you order.
- The number means
- Size = inside circumference in millimetres
- Written as
- a two-digit number — “taille cinquante-deux”
Worth knowing: French retailers usually quote the full ISO circumference (e.g. taille 52). A minority still use the older “circumference − 40” form — that value is the Italy/Spain/Switzerland column. Check which one your jeweller means.
France sizes converted
Every row is calculated from the published standards, so the columns stay consistent with one another.
Scroll the table sideways to see every region
| France | Diameter | Circum. | US / CA | UK / AU | EU / ISO | DE / NL | Russia |
|---|---|---|---|---|---|---|---|
| 47 | 14.88 mm | 46.8 mm | 4 | H½ | 47 | 15 | 15 |
| 48 | 15.29 mm | 48.0 mm | 4½ | I½ | 48 | 15.5 | 15.5 |
| 49.5 | 15.69 mm | 49.3 mm | 5 | J½ | 49.5 | 15.5 | 15.5 |
| 50.5 | 16.10 mm | 50.6 mm | 5½ | K½ | 50.5 | 16 | 16 |
| 52 | 16.51 mm | 51.9 mm | 6 | L½ | 52 | 16.5 | 16.5 |
| 53 | 16.91 mm | 53.1 mm | 6½ | M½ | 53 | 17 | 17 |
| 54.5 | 17.32 mm | 54.4 mm | 7 | N½ | 54.5 | 17.5 | 17.5 |
| 55.5 | 17.73 mm | 55.7 mm | 7½ | O½ | 55.5 | 17.5 | 17.5 |
| 57 | 18.13 mm | 57.0 mm | 8 | P½ | 57 | 18 | 18 |
| 58 | 18.54 mm | 58.2 mm | 8½ | Q½ | 58 | 18.5 | 18.5 |
| 59.5 | 18.95 mm | 59.5 mm | 9 | R½ | 59.5 | 19 | 19 |
| 61 | 19.35 mm | 60.8 mm | 9½ | S½ | 61 | 19.5 | 19.5 |
| 62 | 19.76 mm | 62.1 mm | 10 | T½ | 62 | 20 | 20 |
| 63.5 | 20.16 mm | 63.3 mm | 10½ | U½ | 63.5 | 20 | 20 |
| 64.5 | 20.57 mm | 64.6 mm | 11 | V½ | 64.5 | 20.5 | 20.5 |
| 66 | 20.98 mm | 65.9 mm | 11½ | W½ | 66 | 21 | 21 |
| 67 | 21.38 mm | 67.2 mm | 12 | X½ | 67 | 21.5 | 21.5 |
| 68.5 | 21.79 mm | 68.5 mm | 12½ | Z | 68.5 | 22 | 22 |
| 69.5 | 22.20 mm | 69.7 mm | 13 | Z+1 | 69.5 | 22 | 22 |
Need a standard that isn’t shown? The full conversion chart lists all11 side by side.
Calibration
Calibrate with something in your pocket.
You don’t need a bank card. Our sizer knows the published diameter of coins from your currency, so you can calibrate with whatever is nearest.
€1
23.25 mm across
European Central Bank coin specifications
€2
25.75 mm across
European Central Bank coin specifications
50 cent
24.25 mm across
European Central Bank coin specifications
Buying from abroad
If you’re ordering from a retailer that uses a different scale, don’t translate the size yourself and hope. Send them the inside diameter in millimetres — every workshop in the world can work from that, and it removes the rounding step where errors creep in.
The reason is that the scales have different step sizes. A whole size in one system rarely lands exactly on a whole size elsewhere, so somebody has to round. Better that it’s the jeweller holding your measurement than a chart guessing at it.