Jewelry Size Guide: Rings, Necklaces & Bracelets
Measure an Existing Ring
Select a ring that fits the intended finger comfortably. Place it flat on a ruler and measure the inside edge to inside edge in millimeters (Inside Diameter).
Measure Finger with Paper Strip
Wrap a 1/2-inch wide paper strip around the base of your finger. Mark where the paper overlaps comfortably, then measure the length against a ruler in millimeters.
| US & Canada | UK & Australia | European (EU) | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| Size 3 | F | 44 | 14.1 mm | 44.2 mm |
| Size 3.5 | G | 45.5 | 14.5 mm | 45.5 mm |
| Size 4 | H ½ | 47 | 14.9 mm | 46.8 mm |
| Size 4.5 | I ½ | 48 | 15.3 mm | 48.0 mm |
| Size 5 | J ½ | 49 | 15.7 mm | 49.3 mm |
| Size 5.5 | K ½ | 50.5 | 16.1 mm | 50.6 mm |
| Size 6 (Most Popular) | L ½ | 52 | 16.5 mm | 51.9 mm |
| Size 6.5 | M ½ | 53 | 16.9 mm | 53.1 mm |
| Size 7 | N ½ | 54.5 | 17.3 mm | 54.4 mm |
| Size 7.5 | O ½ | 56 | 17.7 mm | 55.7 mm |
| Size 8 | P ½ | 57 | 18.1 mm | 57.0 mm |
| Size 8.5 | Q ½ | 58.5 | 18.5 mm | 58.3 mm |
| Size 9 | R ½ | 59.5 | 19.0 mm | 59.5 mm |
| Size 9.5 | S ½ | 61 | 19.4 mm | 60.8 mm |
| Size 10 | T ½ | 62 | 19.8 mm | 62.1 mm |
| Size 10.5 | U ½ | 63.5 | 20.2 mm | 63.4 mm |
| Size 11 | V ½ | 64.5 | 20.6 mm | 64.6 mm |
| Size 12 | X ½ | 67 | 21.4 mm | 67.2 mm |
| Size 13 | Z+1 | 70 | 22.2 mm | 69.7 mm |
Finding Your Ideal Chain Length
The right chain length frames your face and accentuates your neckline. Consider your personal height, neck circumference, and the style of pendant you plan to wear.
Standard Women's Lengths
For most women, an 18-inch chain is the gold standard for daily wear and solitaire diamond pendants. If you prefer a choker style, select 16 inches. For layering, pairing 16", 18", and 20" chains creates an elegant tiered waterfall.
Standard Men's Lengths
For men, the most common length is 20 inches, which sits right at the collarbone. A 22-inch chain falls a few inches below the collarbone, ideal for wearing with a cross, dog tag, or heavier pendant outside a shirt.
Measuring Wrist Circumference
Wrap a flexible measuring tape snugly around your wrist just below the wrist bone. Add 0.5 inches (1.2 cm) to your exact measurement for a comfortable, graceful drape.
Measuring Hand for Bangles
Bring your thumb and little finger together as if putting on a bangle. Wrap measuring tape around the widest part of your hand (the knuckles). This ensures the bangle can slip over your hand.
| Size Category | Wrist Circumference (Inches) | Wrist Circumference (CM) | Recommended Bracelet Length | Bangle Inside Diameter |
|---|---|---|---|---|
| Extra Small (XS) | 5.5" – 6.0" | 14.0 – 15.2 cm | 6.5 inches | 57 mm (2.25") |
| Small (S) | 6.0" – 6.5" | 15.2 – 16.5 cm | 7.0 inches | 60 mm (2.37") |
| Medium (M - Standard) | 6.5" – 7.0" | 16.5 – 17.8 cm | 7.5 inches | 64 mm (2.50") |
| Large (L) | 7.0" – 7.5" | 17.8 – 19.0 cm | 8.0 inches | 67 mm (2.62") |
| Extra Large (XL) | 7.5" – 8.0" | 19.0 – 20.3 cm | 8.5 inches | 70 mm (2.75") |
Expert Sizing Advice
What if I order the wrong ring size?
Reminiscence Jewels offers complimentary resizing on standard engagement rings within 30 days of purchase. Eternity bands with diamonds all around cannot be resized and must be exchanged.
What is the most popular women’s ring size?
In the US, the average women’s ring size is US 6 to US 6.5. If you are surprising your partner and unsure, sizing up slightly is recommended.
What is the standard necklace length?
18 inches (Princess length) is the standard for women, sitting comfortably on the collarbone. For men, 20 inches is the classic standard length.
How tight should a bracelet or bangle fit?
For chain and tennis bracelets, add 0.5 inches to your exact wrist measurement. For slip-on bangles, measure your hand circumference at its widest knuckle point.










