Sizing Guide
Not sure about your size? You can either measure a ring you already wear or follow the steps below to measure your finger!
Measure My OWn Ring
1. Grab a ring that already fits the finger you want to wear it on.
2. Measure the inside diameter of that ring (in mm). Make sure your ruler starts at the 0 mm mark for the most accurate result!
| Internal Diameter (mm) |
US/CAN |
UK/AUS |
German |
| 13.2 | 2 | D | 12.75 |
| 14.1 | 3 | F | 14 |
| 14.9 | 4 | H | 15 |
| 15.7 | 5 | J | 15.75 |
| 16.5 | 6 | L | 16.5 |
| 17.3 | 7 | N | 17.25 |
| 18.1 | 8 | P | 18 |
| 19.0 | 9 | R | 19 |
| 19.8 | 10 | T | 19.75 |
| 20.6 | 11 | V | 20.5 |
| 21.4 | 12 | X | 21.25 |
| 22.2 | 13 | Z | 22.25 |
Measure My Finger
1. Cut a thin strip of paper. Just make sure it’s not too wide (around 0.4" or 1cm).
2. Wrap it around the finger where you’d like your ring to sit. Make sure it’s pulled snug (the tighter the better) to find your best fit.
3. Mark the spot where the ends meet and measure the length from the start to your mark (in mm).
| Circumference (mm) |
US/CAN |
UK/AUS |
German |
| 41.5 | 2 | D | 12.75 |
| 44.2 | 3 | F | 14 |
| 46.8 | 4 | H | 15 |
| 49.3 | 5 | J | 15.75 |
| 51.9 | 6 | L | 16.5 |
| 54.4 | 7 | N | 17.25 |
| 57.0 | 8 | P | 18 |
| 59.5 | 9 | R | 19 |
| 62.1 | 10 | T | 19.75 |
| 64.6 | 11 | V | 20.5 |
| 67.2 | 12 | X | 21.25 |
| 69.7 | 13 | Z | 22.25 |
After your purchase, we’ll email you a free shipping code within 24 hours to use on your next ring order. Limit 1 sizer per customer :)
Each Ring Sizer also comes with a simple instruction card, so you can measure accurately at home.