AHQ ONE

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Ring, bracelet, and necklace sizing — measure at home before you order.

Getting the right size is the most important step before ordering rings or bracelets online. Use our guide to measure at home or convert between international sizing systems.

Use Ring Size Calculator

Ring Size Calculator

Enter your finger circumference or inner ring diameter in millimeters to find your US / UK / EU size.

How to Measure Your Ring Size at Home

Method 1

String or Paper Strip

  1. Cut a thin strip of paper or string about 10 cm long.
  2. Wrap it snugly around the base of the finger you'll wear the ring on.
  3. Mark or cut where it meets itself.
  4. Measure the length in millimeters — this is your circumference.
  5. Find your size in the table below using the circumference column.
Method 2

Measure an Existing Ring

  1. Find a ring that fits the correct finger well.
  2. Place it on a ruler and measure the inner diameter in millimeters.
  3. Match the diameter to the table below.

💡 Tip: Fingers are slightly larger in the evening and in warm weather. Measure at the end of the day for the most accurate fit.

Ring Size Conversion Chart

Diameter (mm)Circumference (mm)US / CanadaUK / AustraliaEU / FranceItaly / Spain
14.144.23F444
14.545.53½G45.55.5
14.946.84H477
15.348.04½I488
15.749.35J½499
16.150.65½K½5111
16.551.96L½5212
16.953.16½M½5313
17.354.47N½5414
17.755.77½O½5616
18.157.08P½5717
18.558.38½Q½5818
19.059.59R½6020
19.460.89½S½6121
19.862.110T½6222
20.263.410½U½6323
20.664.611V½6525

★ Highlighted rows (US 6–7½) represent the most common sizes for women's rings.

Bracelet & Bangle Size Guide

To measure your wrist, wrap a soft tape measure or string snugly around your wrist bone. Note the measurement in centimeters, then add 1–2 cm for comfort.

Wrist CircumferenceBracelet SizeRecommended
14–15 cm (5.5–6")16 cm / 6.3"XS – Snug fit
15–16 cm (6–6.3")17 cm / 6.7"S – Standard fit
16–17 cm (6.3–6.7")18 cm / 7.1"M – Most common
17–18 cm (6.7–7.1")19 cm / 7.5"L – Relaxed fit
18–19 cm (7.1–7.5")20 cm / 7.9"XL – Loose fit
Not sure between sizes? For rings with stones (especially eternity bands), we recommend sizing up by half a size for comfort. Wide bands also tend to fit tighter — size up if in doubt.

Still unsure? Contact our team — we'll help you choose →

Sizing FAQs

Most plain band rings can be resized by a local jeweler by 1–2 sizes. However, eternity bands and rings with continuous stone settings cannot be resized. For these, please verify your size carefully before ordering.
Always measure the specific finger you intend to wear the ring on. Dominant hand fingers are often slightly larger. If your knuckle is larger than your base joint, measure the knuckle and size up slightly for comfortable removal.
Some bangle and cuff styles are adjustable. Check the individual product page for sizing details. Fixed-diameter bangles require measurement to pass over the widest part of your hand.

Clothing size guide

We list US sizes. Measure yourself in centimetres and compare to the chart before ordering. International sizing varies — when between sizes, size up for woven styles and check the garment measurements on each product page.

USBust (cm)Waist (cm)Hip (cm)
XS80–8462–6686–90
S84–8866–7090–94
M88–9270–7494–98
L92–9874–8098–104
XL98–10480–86104–110
XXL104–11086–92110–116
1X110–11692–98116–122
2X116–12298–104122–128
3X122–128104–110128–134

How to measure

  • Bust: fullest part, tape parallel to the floor.
  • Waist: narrowest natural waist.
  • Hip: fullest part of the hips/seat.

Evening gowns and structured pieces may use garment-specific measurements on the product page — those override this general chart.