The most accurate method
The best way to find your ring size is to visit a local jeweller and ask to have your finger measured. This is usually free and gives the most accurate result.

Measure a ring you already own
If you have a ring that fits the finger you’re shopping for:

1. Place the ring flat on a ruler

2. Measure the inside diameter of the ring in millimetres (mm)

3. Find your measurement in the Diameter (mm) column of the chart

4. Follow across to the Australia & UK column to find your size

Important Notes

• Many of our rings (particularly sea glass pieces) are one of a kind and cannot be resized or remade
• If your knuckle is larger than the base of your finger, choose a size that comfortably fits over the knuckle
• Fingers can change size with heat, cold, and time of day
• Wider band styles may feel slightly tighter than fine bands
• If you’re between sizes, we recommend sizing up

Feel free to send us an email via hello@bumbleandharlow.com if you need more guidance!