01
Wrap the finger
Use a flexible measuring tape, or a thin strip of paper / string. Wrap it around the finger you will wear — for a stack, note where on the finger the ring will sit.
Client Care
Ring size guide
Find your perfect fit. Orovia uses USA / Canada sizing — convert from circumference, diameter, or an international chart.
International conversion
Orovia rings use USA / Canada sizing. If you are between sizes, choose the larger one.
| Circumference (mm) · Europe / ISO |
Diameter (mm) |
USA / Canada | UK / Australia | Asia | Switzerland |
|---|---|---|---|---|---|
| 44.2 | 14.1 | 3 | F | 4 | 4 |
| 44.8 | 14.3 | — | F-1/2 | 5 | 5-1/4 |
| 45.5 | 14.5 | 3-1/2 | G | — | — |
| 46.1 | 14.7 | — | G-1/2 | 6 | 6-1/2 |
| 46.8 | 14.9 | 4 | H | 7 | — |
| 47.4 | 15.1 | — | H-1/2 | 8 | 7-3/4 |
| 48.0 | 15.3 | 4-1/2 | I | — | — |
| 48.7 | 15.5 | — | I-1/2 | 9 | 9 |
| 49.3 | 15.7 | 5 | J | 10 | — |
| 50.0 | 15.9 | — | J-1/2 | — | 10-1/4 |
| 50.6 | 16.1 | 5-1/2 | K | 11 | — |
| 51.2 | 16.3 | — | K-1/2 | 12 | 11-1/2 |
| 51.9 | 16.5 | 6 | L | 13 | — |
| 52.5 | 16.7 | — | L-1/2 | — | 12-3/4 |
| 53.1 | 16.9 | 6-1/2 | M | 14 | — |
| 53.8 | 17.1 | — | M-1/2 | 15 | 14 |
| 54.4 | 17.3 | 7 | N | — | — |
| 55.1 | 17.5 | — | N-1/2 | 16 | 15-1/4 |
| 55.7 | 17.7 | 7-1/2 | O | 17 | — |
| 56.3 | 17.9 | — | O-1/2 | — | 16-1/2 |
| 57.0 | 18.1 | 8 | P | 18 | — |
| 57.6 | 18.3 | — | P-1/2 | 19 | 17-3/4 |
| 58.3 | 18.5 | 8-1/2 | Q | — | — |
| 58.9 | 18.8 | — | Q-1/2 | 20 | 19 |
| 59.5 | 19.0 | 9 | R | 21 | — |
| 60.2 | 19.2 | — | R-1/2 | — | 20-1/4 |
| 60.8 | 19.4 | 9-1/2 | S | 22 | — |
| 61.4 | 19.6 | — | S-1/2 | 23 | 21-1/2 |
| 62.1 | 19.8 | 10 | T | — | — |
| 62.7 | 20.0 | — | T-1/2 | 24 | 22-3/4 |
| 63.4 | 20.2 | 10-1/2 | U | 25 | — |
| 64.0 | 20.4 | — | U-1/2 | — | 24 |
| 64.6 | 20.6 | 11 | V | 26 | — |
| 65.3 | 20.8 | — | V-1/2 | — | 25-1/4 |
| 65.9 | 21.0 | 11-1/2 | W | 27 | — |
| 66.6 | 21.2 | — | W-1/2 | — | — |
| 67.2 | 21.4 | 12 | X | — | 26-1/2 |
| 67.8 | 21.6 | — | X-1/2 | — | — |
| 68.5 | 21.8 | 12-1/2 | Y | — | 27-1/2 |
| 69.1 | 22.0 | — | Y-1/2 | — | — |
| 69.7 | 22.2 | 13 | Z | — | 28-3/4 |
| 70.4 | 22.4 | — | Z-1/2 | — | — |
| 71.0 | 22.6 | 13-1/2 | Z + 1 | — | — |
02
Mark & measure
Mark where the ends meet. Lay flat and measure the length in millimetres. That length is your circumference.
03
Find your size
Match the circumference to the chart. Enter it below for an instant USA / Canada size.
Measure an existing ring
Ideal when gifting — or when you already own a ring that fits well.
- Choose a ring that already fits the intended finger.
- Measure the interior diameter in millimetres (edge to edge across the inside).
- Match to the diameter column — or pick the closest circle below.
Print this page at 100% scale and place your ring over a circle — the inner edge should align with the ring outline.