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Ring Sizing Info ...

Working out your ring size ...

If you have a ring that already fits you well, you can measure the internal diameter (ID) and work out your size from that. Measure across the widest part of the ring, NOT including the sides / metal. So in effect, you're measuring the space only. Note down the measurement in millimetres. 

The image below shows the size in millimetres, and the corresponding ring size. So if your measurement is 17.4mm, then you're a size N.


The chart below shows the conversions between the different ring sizing systems. I use the British system, which uses letters. So if you're a size 10 in the US sizing, then you're a size T in the British sizing.

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