Choose necklace length and design size separately. The way a chain sits depends on your neck, height, shoulders, clothing and any pendant, so a chart is a reference rather than a universal fit promise.
Measure the Placement You Want
Use a soft tape or a chain you already wear. Compare it around the base of your neck and at the place you want the new necklace to sit. Keep the measurement relaxed rather than tight. Check the chosen product for its available lengths.
Length Conversion
One inch equals 2.54 cm. These are length conversions, not a statement that every design is available in every listed size.
| Necklace length (in) | Necklace length (cm) |
|---|---|
| 16 | 40.64 |
| 18 | 45.72 |
| 20 | 50.80 |
| 22 | 55.88 |
| 24 | 60.96 |
| 26 | 66.04 |
| 28 | 71.12 |
| 30 | 76.20 |
Compare Design Size and Link Structure
Read what the millimeter measurement refers to: the stone, setting or complete chain profile. Tennis settings, Cuban links, rope and braided designs can look different at the same listed size. Compare the full profile and the fastening instead of selecting by a number alone.
Plan for a Pendant
Check the pendant-bail opening against the full chain profile. A stone measurement is not necessarily the width that must pass through the bail. Pendant-body size and weight also affect placement; confirm compatibility if those dimensions are unclear.
Try a Layered Arrangement
Compare the lengths with a tape before buying several pieces. Choose enough separation for the look you want without assuming one fixed difference works for everyone. Use an existing chain as a reference for the outfit you plan to wear.
Read the pendant size guide or bracelet size guide for the other measurements, then confirm the actual options on your product page.