Measure a ring you already own
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A ring that already fits the finger you plan to wear your STRIKE Go ring on can help you find your size.
What you need
Your ring and a ruler marked in millimetres.
1. Measure the inside diameter
Place the ring flat on the ruler. Measure straight across the centre, from one inside edge to the other. Do not include the thickness of the ring itself.
2. Find your size
Compare that measurement with the inside diameter column below. For example, an inside diameter of 18.95 mm corresponds to US size 9.
STRIKE Go size chart
Match your measurement in millimetres to the chart. Available sizes depend on the ring model.
| US size | Inside diameter (mm) | Circumference (mm) |
|---|---|---|
| 6 | 16.51 | 51.9 |
| 7 | 17.32 | 54.5 |
| 8 | 18.14 | 57.0 |
| 9 | 18.95 | 59.5 |
| 10 | 19.76 | 62.1 |
| 11 | 20.57 | 64.6 |
| 12 | 21.39 | 67.2 |
| 13 | 22.20 | 69.7 |
| 14 | 23.01 | 72.3 |
No suitable ring to measure? Measure your finger instead.