Ring Size Guide
How to measure your ring size at home
- Take a ring that fits the finger you want to wear it on.
- Measure the inside diameter in millimetres, edge to edge.
- Or wrap a strip of paper around the base of your finger, mark where it overlaps and measure the length: that’s the circumference.
- Measure at the end of the day, when fingers are slightly larger, and pick the larger size if you’re between two.
Ring size conversion chart
| India | US / Canada | UK / Australia | Europe | Inner circumference | Inner diameter |
|---|---|---|---|---|---|
| 4 | 3 | F | 44 | 44.2 mm | 14.1 mm |
| 5 | 3.5 | G | 45 | 45.4 mm | 14.5 mm |
| 7 | 4 | H | 47 | 46.7 mm | 14.9 mm |
| 8 | 4.5 | I | 48 | 48.0 mm | 15.3 mm |
| 9 | 5 | J½ | 49 | 49.3 mm | 15.7 mm |
| 11 | 5.5 | K½ | 51 | 50.5 mm | 16.1 mm |
| 12 | 6 | L½ | 52 | 51.8 mm | 16.5 mm |
| 13 | 6.5 | M½ | 53 | 53.1 mm | 16.9 mm |
| 14 | 7 | N½ | 54 | 54.4 mm | 17.3 mm |
| 16 | 7.5 | O½ | 56 | 55.7 mm | 17.7 mm |
| 17 | 8 | Q | 57 | 56.9 mm | 18.1 mm |
| 18 | 8.5 | Q½ | 58 | 58.2 mm | 18.5 mm |
| 19 | 9 | R½ | 59 | 59.5 mm | 18.9 mm |
| 21 | 9.5 | S½ | 61 | 60.8 mm | 19.3 mm |
| 22 | 10 | T½ | 62 | 62.0 mm | 19.7 mm |
Sizes are standard conversions and vary between brands. Always check the brand's own size chart before you buy.