Ring Sizing For Men & Women
This ring sizing guide for men and women explains how to measure ring size accurately using standard methods, including finger circumference, diameter charts, and at-home tools. Learn average ring sizes, fit tips, and best practices to ensure a comfortable and secure ring fit when purchasing or gifting jewelry.
RING SIZING CHART
Use the ring sizing chart below to compare finger circumference and diameter with standard US ring sizes. This chart helps you quickly identify the correct size for a precise and comfortable fit.
| RING SIZE | DIAMETER (mm) | CIRCUMFERENCE (mm) |
| F | 14.1 | 44.2 |
| G | 14.5 | 45.5 |
| H | 14.9 | 46.8 |
| I | 15.3 | 48.0 |
| J 1/2 | 15.7 | 49.3 |
| K 1/2 | 16.1 | 50.6 |
| L 1/2 | 16.5 | 51.9 |
| M 1/2 | 16.9 | 53.1 |
| N 1/2 | 17.3 | 54.4 |
| O 1/2 | 17.7 | 55.7 |
| P 1/2 | 18.1 | 57.0 |
| Q 1/2 | 18.5 | 58.3 |
| R 1/2 | 19.0 | 59.5 |
| S 1/2 | 19.4 | 60.8 |
| T 1/2 | 19.8 | 62.1 |
| U 1/2 | 20.2 | 63.4 |
| V 1/2 | 20.6 | 64.6 |
| W 1/2 | 21.0 | 65.9 |
| X 1/2 | 21.4 | 67.2 |
| Z | 21.8 | 68.5 |
| Z1 | 22.2 | 69.7 |
| Z2 | 22.6 | 71.0 |
| Z3 | 23.0 | 72.3 |
| Z4 | 23.4 | 73.6 |
| Z5 | 23.8 | 74.8 |
PLEASE NOTE:
The average ring size for women is size N ½; the average ring size for men is size T ½.
A ring should fit secure enough so that it will never fall off. It should have a loose comfortable fit when sliding it over your knuckle.
