Practical Ring Size Guide
Studio Jewellery provides a printed version of a ring sizing guide. You simply place an existing ring on the Printed A4 page and then can work out your size.
Practical Ring Size ChartThe following table represents a practical ring size guide for the markets that Studio Jewellery is active. The sizes are rounded up to the nearest 1/4 mm. |
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| US & Canada | Australian, NZ, UK & Ireland | European | Inside diameter MM |
| 2 | D | 42 | 13 1/4 |
| 3 | F | 44 | 14 |
| 4 | H | 47 | 15 |
| 5 | K | 49 | 15 3/4 |
| 6 | M | 52 | 16 1/2 |
| 7 | O | 55 | 17 1/4 |
| 8 | Q | 57 | 18 |
| 9 | S | 60 | 19 |
| 10 | U | 62 | 20 |
Mandrels for sizing
If using a Mandrel, we suggest deducting ¼ or even a ½ number smaller in a US size or 1 full letter in Australian/UK sizes.
A mandrel has a hard round metal surface. It will not measure any irregular shapes, square or a flat edges, on a hard metal ring accurately. Adding to this, inexpensive mandrels are often not calibrated 100% correctly.
A mandrel is not 100% accurate, use it as an approximate guide only!
