size guide
All Mantor rings are measured in EU sizing (inner circumference in millimeters).
Note:
Due to the solid, wide-profile design of our rings, they fit snugger than standard thin bands. If you are between two sizes, we recommend selecting one size up.
Ring Size Conversion
| EU Size (Circumference) | Inside Diameter | US Equivalent |
|---|---|---|
| 54 (54.0 mm) | 17.2 mm | US 7 |
| 56 (56.0 mm) | 17.8 mm | US 7.5 – 8 |
| 58 (58.0 mm) | 18.5 mm | US 8.5 |
| 60 (60.0 mm) | 19.1 mm | US 9 |
| 62 (62.0 mm) | 19.7 mm | US 10 |
| 64 (64.0 mm) | 20.4 mm | US 11 |
| 66 (66.0 mm) | 21.0 mm | US 11.5 – 12 |
| 68 (68.0 mm) | 21.6 mm | US 12.5 |
| 70 (70.0 mm) | 22.3 mm | US 13 |
| 72 (72.0 mm) | 22.9 mm | US 13.5 – 14 |
How to Measure
Option 1: Measure an existing ring
Place a ring that fits you well flat on a ruler and measure the inside diameter in millimeters (excluding the metal).
Option 2: Measure your finger
Wrap a strip of paper around the base of your finger or knuckle, mark where it overlaps, and measure the length in millimeters against a ruler. That measurement corresponds to your EU size.
Fit Tips
- If your knuckle is wider than the base of your finger, pick a size between both measurements so the ring slides over smoothly.
- Measure at room temperature in the late afternoon, as fingers can be slightly slimmer in the morning or cold weather.