Ring Sizing Chart
Ring Size Conversion Table
Our ring sizer makes finding the right fit simple and accurate. Whether you’re buying a new ring or checking your current size, our tool uses international standards for precise measurements. Just use our conversion chart to find your size. If you’re between sizes, we suggest choosing the larger one for comfort.
Measure My Own Ring
Instructions
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Use a ring that fits the desired finger.
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Measure the internal diameter of the ring (in mm). Ensure your ruler starts at the 0mm mark.
Use the size chart below to determine your ring size.
Measure My Finger
Not sure of your size? No worries! Click here to order a free ring sizer, and we’ll guide you through the process.
Our Ring Sizer Chart
| USA |
AU /UK |
Inside Circ. (mm) | Inside Circ. (inches) | Inside Dia. (mm) |
| 2 | D | 41.6 | 1.64 | 13.26 |
| 3 | F | 44 | 1.73 | 13.99 |
| 4 | I | 47.4 | 1.87 | 15.12 |
| 5 | K | 50 | 1.97 | 15.93 |
| 6 | M | 52.5 | 2.07 | 16.74 |
| 7 | O | 55.1 | 2.17 | 17.54 |
| 8 | Q | 57.6 | 2.27 | 18.35 |
| 9 | R | 59.2 | 2.33 | 18.84 |
| 10 | T | 61.4 | 2.42 | 19.57 |
| 11 | V | 64 | 2.52 | 20.38 |
| 12 | X | 66.2 | 2.6 | 21.06 |
| 13 | Y | 67.8 | 2.67 | 21.58 |
| 14 | Z | 69.1 | 2.72 | 21.99 |
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