Ring Size Guide
Finding your perfect ring size is easier than you think. Follow these three simple steps and you'll have your measurement in minutes — no jeweller visit required.
Measure an existing ring
Find a ring that already fits the finger you're sizing. Place it flat on a ruler and measure the inner diameter in millimetres — this is the distance straight across the inside of the band. Note this number down.
Measure your finger
No ring handy? Wrap a a piece of string snugly around the base of your finger. Mark where the ends meet, then lay it flat and measure the length in millimetres.
This is your finger's circumference. For the most accurate result, measure at the end of the day when fingers are at their largest.
Compare to our size chart
Match your measurement to the chart below. If you're between two sizes, we recommend sizing up — especially for wider bands, which tend to fit more snugly. All measurements are in millimetres.
| BBB Size | AUS/UK | Diameter | Circumference |
|---|---|---|---|
| 6 | L | 16.5 | 51.5 |
| 7 | N | 17.3 | 54 |
| 8 | P | 18.3 | 57 |
| 9 | R | 19 | 60 |
| 10 | T | 19.8 | 62 |
