Ring Sizing Guide
On each ring product you will be able to choose your ring size. Our rings are listed in US sizes (for example US Size 6), but we also reference UK sizes, EU sizes and millimetres to help you find the best fit.
If you are unsure of your ring size, please visit findmyringsize.com to measure a ring you already own.
If you know your size in a different format (for example UK size or millimetres), please use the conversion guide below.
As a general rule of thumb, the wider the band, the snugger the fit. Therefore, any rings with a thicker band or a double band may fit slightly smaller. With these, we would recommend sizing up.
Note:
- The mm measurement is the inside diameter of the ring.
- The EU size represents the circumference of the ring in millimetres.
Ring Size Conversion
- Extra Small — US 5 | UK J | EU 49 | 15.75mm
- Small — US 6 | UK L | EU 51 | 16.5mm
- Medium — US 7 | UK N | EU 54 | 17.5mm
- Large — US 8 | UK P | EU 57 | 18.25mm
- Extra Large — US 9 | UK S | EU 60 | 19mm
- XXL — US 10 | UK T | EU 62 | 20mm
Ring Circumference Guide
| US Size | Inside Circumference (Inches) | Inside Circumference (CM) |
|---|---|---|
| 3 | 1.74" | 4.41 cm |
| 4 | 1.84" | 4.70 cm |
| 5 | 1.94" | 4.90 cm |
| 6 | 2.04" | 5.18 cm |
| 7 | 2.14" | 5.43 cm |
| 8 | 2.24" | 5.68 cm |
| 9 | 2.34" | 5.94 cm |
| 10 | 2.44" | 6.19 cm |
Necklace & Choker Sizing
Each product page will display the length of the necklace chain or choker. Please use the image below as a general guide for how different lengths sit.
Necklaces may sit differently depending on your neck circumference.
Most of our necklaces and all chokers include an adjustable extender chain, allowing you to adjust the length or layer multiple pieces.

Bracelets & Anklets
Some of our bracelets and anklets are adjustable, allowing you to wear them at your preferred size.
If the item is not adjustable, the exact length will be listed on the product page. We typically offer multiple bracelet sizes so you can find the best fit.
Our bangles are measured by the diameter across the longest point, hinge to clasp from the inside edge to inside edge.
If you know your size in our chain bracelets, we would recommend choosing the same size for the sized bangles.
Please note: Chain bracelet measurements do not include the clasp or jump rings.
Need More Help?
If you need further sizing advice, please contact our team at customerservice@bohomoon.com.
If your item arrives and the size is not quite right, we offer returns and exchanges for your peace of mind.