The easiest way to find your ring size at home is to measure the inside of a ring that already fits, then match it to the chart below. A ring that fits well slides over your knuckle with a little resistance and doesn't spin once it's on.
Tips for an accurate measurement
Your finger size changes a little with temperature and time of day, so:
- Measure at the end of the day, when your fingers are warm.
- Don't measure right after exercise or when you're cold.
- Wide bands (4 mm or wider) feel tighter than thin ones. For a wide band, go up a quarter to half a size.
How do I measure a ring I already own?
Take a ring that fits the same finger well. Lay it on a ruler and measure the inside diameter, from inside edge to inside edge (don't include the metal). Then find your size in the ring size chart.
| Inside diameter | Circumference | US / CA size | UK / AU size | EU size |
|---|---|---|---|---|
| 14.1 mm | 44.2 mm | 3 | F | 44 |
| 14.9 mm | 46.8 mm | 4 | H | 47 |
| 15.7 mm | 49.3 mm | 5 | J 1/2 | 49 |
| 16.5 mm | 51.9 mm | 6 | L 1/2 | 52 |
| 17.3 mm | 54.4 mm | 7 | N 1/2 | 54 |
| 18.1 mm | 57.0 mm | 8 | P 1/2 | 57 |
| 19.0 mm | 59.5 mm | 9 | R 1/2 | 59 |
| 19.8 mm | 62.1 mm | 10 | T 1/2 | 62 |
Which sizes do you make?
We make US sizes 3 to 10¾ in quarter sizes. Need a different size? Custom sizes are available on request — tap Customize on the product page.
Not sure of your size?
Email us at info@shinorajewels.com and we'll help you choose the closest half or quarter size before your ring is made.