Average men's ring sizes, how to measure your finger correctly, and the complete conversion chart for men's rings.
Men's ring sizes typically run larger than women's, and the sizing process has a few unique considerations — particularly around knuckle clearance and band width. This guide covers everything a man (or someone buying for a man) needs to know.
The average men's ring size in the United States is US size 10, which corresponds to:
| System | Average Size | Common Range |
|---|---|---|
| US / Canada | 10 | 9 – 12 |
| UK / IRE / AUS | T | R – X |
| EU / French | 62 | 59 – 68 |
| Japan / China | 22 | 19 – 27 |
| Diameter | 19.8mm | 18.9 – 21.5mm |
Note these are averages. Men's ring sizes vary significantly with height, weight, and hand size. Always measure rather than guessing.
Men's fingers, like all fingers, are largest in the evening. Never measure first thing in the morning.
Wrap a thin strip of paper around the base of the ring finger. Make sure it passes comfortably over the knuckle — this is critical for men whose knuckles are larger.
Mark where the paper overlaps and measure in mm. This is your circumference.
If your knuckle measurement and base measurement differ by more than 2mm, choose a size between the two — or consult a jeweller about comfort-fit bands.
| US / Canada | UK / IRE / AUS | EU | Japan | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|
| 8 | P | 57 | 17 | 18.2 | 57.2 |
| 8.5 | Q | 58 | 18 | 18.5 | 58.2 |
| 9 | R | 59 | 19 | 18.9 | 59.3 |
| 9.5 | S | 61 | 21 | 19.4 | 61.0 |
| 10 | T | 62 | 22 | 19.8 | 62.2 |
| 10.5 | U | 63.5 | 24 | 20.2 | 63.5 |
| 11 | V | 65 | 25 | 20.7 | 65.0 |
| 11.5 | W | 66 | 26 | 21.1 | 66.2 |
| 12 | X | 67.5 | 28 | 21.5 | 67.5 |
| 13 | Z | 70 | 30 | 22.3 | 70.1 |
| 14 | Z+2 | 71 | 31 | 22.7 | 71.3 |
Men's wedding bands and fashion rings are typically wider than women's rings — often 6mm to 10mm or more. Band width significantly affects how a ring feels and how tight it seems:
This is especially important for men's wedding bands, which tend to be wider than everyday rings.
Buying a ring for a man without his knowledge? Try these approaches: