Ring Size Guide
Ring Size Guide
Find your perfect fit in minutes. Use the quick methods below or match an existing ring to our conversion chart. If you’re between sizes, we recommend choosing the larger size for comfort.
Method 1 — Measure a Ring You Own Most Accurate
- Pick a ring that fits the exact finger you’re shopping for.
- Measure the inside diameter in millimetres (mm). Place the ring on a ruler and measure across the inner circle at the widest point.
- Use the table below to match the diameter to your size.
Pro tip: Measure 2–3 times and average the result.
Method 2 — String/Paper Wrap
- Wrap a thin strip of paper or string around the base of your finger (snug, not tight).
- Mark the overlap, lay it flat, and measure the length in mm to get your circumference.
- Match your circumference to the table below.
Knuckle check: If your knuckles are wider than the base of your finger, measure both and choose a size in-between.
Method 3 — Temperature & Fit Tips
- Measure at the end of the day when fingers are warm (they’re slightly smaller when cold).
- Rings with thick bands can feel tighter—consider sizing up ½ size.
- For stacking or adjustable styles, comfort-fit is key; size up if unsure.
Between sizes? Choose the larger one for everyday comfort.
International Ring Size Conversion
NZ & AU typically follow UK lettering. Measurements are approximate.
| US | UK / NZ / AU | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 4 | H | 14.8 | 46.5 |
| 4.5 | I | 15.2 | 47.8 |
| 5 | J 1/2 | 15.7 | 49.3 |
| 5.5 | K 1/2 | 16.1 | 50.6 |
| 6 | L 1/2 | 16.5 | 51.9 |
| 6.5 | M 1/2 | 16.9 | 53.1 |
| 7 | O | 17.3 | 54.4 |
| 7.5 | P | 17.7 | 55.7 |
| 8 | Q | 18.1 | 56.9 |
| 8.5 | Q 1/2 | 18.5 | 58.1 |
| 9 | R 1/2 | 18.9 | 59.4 |
| 9.5 | S 1/2 | 19.4 | 60.8 |
| 10 | T 1/2 | 19.8 | 62.1 |
| 10.5 | U 1/2 | 20.2 | 63.3 |
| 11 | V 1/2 | 20.6 | 64.6 |
| 11.5 | W 1/2 | 21.0 | 65.9 |
| 12 | Y | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z 1/2 | 22.2 | 69.7 |
Need Help Choosing?
DM us on Instagram @liquidthelabel or email hello@liquidthelabel.com with a photo of your ring and measurement—we’ll recommend the best size.