Size guide
Men’s Ring Size Guide (EU 54–75)
Best accuracy: Visit a local jeweler and ask to measure your finger with a metal ring sizer / mandrel. Tell them you need the EU/ISO size (inner circumference in mm).
- Measure the exact finger you’ll wear it on (dominant hand can be slightly larger).
- Measure at the end of the day (fingers swell with heat/activity).
- Wide bands (6–10mm) often feel tighter → consider going up ~½ size.
- If you’re between two sizes, choose the larger one.
| EU / ISO (circumference, mm) |
Inside Ø (mm) |
US / Canada (approx.) |
UK / AU (approx.) |
Italy / Spain / CH (EU−40) |
|---|---|---|---|---|
| 54 | 17.19 | 7 | N | 14 |
| 55 | 17.51 | 7.5 | O | 15 |
| 56 | 17.83 | 7.5 | P | 16 |
| 57 | 18.14 | 8 | P 1/2 | 17 |
| 58 | 18.46 | 8.5 | Q 1/2 | 18 |
| 59 | 18.78 | 9 | R | 19 |
| 60 | 19.10 | 9 | S | 20 |
| 61 | 19.42 | 9.5 | T | 21 |
| 62 | 19.74 | 10 | T 1/2 | 22 |
| 63 | 20.05 | 10.5 | U 1/2 | 23 |
| 64 | 20.37 | 11 | V 1/2 | 24 |
| 65 | 20.69 | 11 | W 1/2 | 25 |
| 66 | 21.01 | 11.5 | X | 26 |
| 67 | 21.33 | 12 | X 1/2 | 27 |
| 68 | 21.65 | 12.5 | Y 1/2 | 28 |
| 69 | 21.96 | 12.5 | Z | 29 |
| 70 | 22.28 | 13 | Z+1 | 30 |
| 71 | 22.60 | 13.5 | Z+2 | 31 |
| 72 | 22.92 | 14 | Z+2 1/2 | 32 |
| 73 | 23.24 | 14.5 | Z+3 1/2 | 33 |
| 74 | 23.55 | 14.5 | Z+4 | 34 |
| 75 | 23.87 | 15 | Z+5 | 35 |
Note: International conversions are approximate and can vary by brand, ring width, and temperature. When possible, choose your size by the EU/ISO mm measurement from a jeweler.