Ring Sizer
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Select an existing ring that fits the desired finger.
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Measure the internal diameter of the ring (in mm).
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Use the below chart to determine your ring size.
Ring size |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Internal diameter(mm) |
14.9 |
15.7 |
16.5 |
17.3 |
18.1 |
19.0 |
19.8 |
20.6 |
21.4 |
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Wrap a strip of paper around your finger where you’d like your ring to be.
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Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit.
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Mark the spot where the paper meets and measure the distance with a ruler (mm).
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Use the below chart to determine your ring size.
Ring size |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
Circumference(mm) |
44.2 |
46.8 |
49.3 |
51.9 |
54.4 |
57.0 |
59.5 |
62.1 |
64.6 |
Tip & Trick
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Measure your fingers at the end of the day when they’re at their largest.
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Cold weather can shrink your fingers up to half a size, so make sure they’re warm.
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Lastly, alcohol and salt can make your fingers swell, so refrain from measuring them after cocktails and appetizers.