OurCoordinates
Size Guide
Everything here is engraved to order, so sizing matters more than it does on a shelf. This guide covers necklace lengths, ring sizes and bracelet fit, with the exact options we offer.
Necklace lengths
Our chains are listed in centimetres. Here is what each length means in inches and where it sits.
| Listed | Inches | Where it sits |
|---|---|---|
| 37 cm | 14.5" | Choker — at the base of the neck |
| 43 cm | 17" | Just at the collarbone |
| 45 cm | 17.7" (about 18") | Just below the collarbone — our most popular length |
| 50 cm | 19.7" (about 20") | On the upper chest, over a crew neck |
| 55 cm | 21.7" (about 22") | Lower on the chest; good for layering or larger frames |
Buying as a gift? Choose 45 cm. It suits most adults and is the length most of our customers order. To layer two pieces, pair 45 cm with 55 cm so the pendants do not overlap.
To measure: drape a piece of string where you want the pendant to fall, mark it, and measure the full loop.
Ring sizes
We list whole US sizes. Coordinates rings run 5–10; men's rings run to 12.
| US size | Inside diameter | Inside circumference |
|---|---|---|
| 5 | 15.7 mm | 49.3 mm |
| 6 | 16.5 mm | 51.9 mm |
| 7 | 17.3 mm | 54.4 mm |
| 8 | 18.1 mm | 57.0 mm |
| 9 | 18.9 mm | 59.5 mm |
| 10 | 19.8 mm | 62.1 mm |
| 11 | 20.6 mm | 64.6 mm |
| 12 | 21.4 mm | 67.2 mm |
Two ways to measure at home. Wrap a strip of paper around the base of the finger, mark where it overlaps, and measure the length in millimetres — that is your inside circumference. Or measure the inside diameter of a ring that already fits and match it above.
Measure at the end of the day, when fingers are at their largest, and never in the cold. Wide bands (our 6 mm coordinates band) fit more snugly than narrow ones — if you are between sizes on a 6 mm band, size up.
Bracelet fit
Most of our bracelets are adjustable, which is why they are the safest choice when you are buying for someone else.
- Coordinates cuff — an open cuff that can be eased gently to the wrist. One size fits most adults.
- Magnetic and cord bracelets — adjustable sliding closure.
- Leather and chain bracelets — measure the wrist snugly with a strip of paper, then add about 1.5 cm (roughly half an inch) for comfortable wear.
Still unsure?
Email info@ourcoordinates.com and we will help you choose before you order. Because every piece is engraved to order, it is worth getting right the first time.