Method one
Measure a ring you already wear
- 1. Take a ring that fits the finger you have in mind.
- 2. Lay a ruler across the inside of it and measure straight across the middle, in millimetres.
- 3. Find that figure in the Inside diameter column below.
Before you order
Size Guide
Indian sizes, with the millimetres behind them. Two minutes with a ruler or a length of thread is all it takes.
How to find your size
Method two
Measure the finger itself
- 1. Wrap a strip of paper or a thread around the base of the finger — snug, not tight.
- 2. Mark where it meets, then lay it flat and measure the length in millimetres.
- 3. Find that figure in the Circumference column below.
Worth knowing
- Measure in the evening. Fingers swell through the day, and a ring that fits at 8 in the morning can be tight by night.
- Not when your hands are cold. Cold fingers measure smaller than they really are.
- A wide band needs a size more. Anything above about 6 mm across sits tighter than a thin one of the same size.
- Check the knuckle. The ring has to pass it. If your knuckle is much larger than the base of the finger, take the size in between.
| Indian size | Inside diameter | Circumference | US | UK |
|---|---|---|---|---|
| 1 | 12.04 mm | 37.8 mm | 0¾ | A |
| 2 | 12.45 mm | 39.1 mm | 1¼ | B |
| 3 | 12.85 mm | 40.4 mm | 1¾ | C |
| 4 | 13.26 mm | 41.7 mm | 2¼ | D |
| 5 | 13.67 mm | 42.9 mm | 2¾ | E |
| 6 | 14.07 mm | 44.2 mm | 3¼ | F |
| 7 | 14.48 mm | 45.5 mm | 3¾ | G |
| 8 | 14.88 mm | 46.8 mm | 4 | H |
| 9 | 15.29 mm | 48.0 mm | 4½ | I |
| 10 | 15.70 mm | 49.3 mm | 5 | J |
| 11 | 16.10 mm | 50.6 mm | 5½ | K |
| 12 | 16.51 mm | 51.9 mm | 6 | L |
| 13 | 16.92 mm | 53.1 mm | 6½ | M |
| 14 | 17.32 mm | 54.4 mm | 7 | N |
| 15 | 17.73 mm | 55.7 mm | 7½ | O |
| 16 | 18.14 mm | 57.0 mm | 8 | P |
| 17 | 18.54 mm | 58.3 mm | 8½ | Q |
| 18 | 18.95 mm | 59.5 mm | 9 | R |
| 19 | 19.35 mm | 60.8 mm | 9½ | S |
| 20 | 19.76 mm | 62.1 mm | 10 | T |
| 21 | 20.17 mm | 63.4 mm | 10½ | U |
| 22 | 20.57 mm | 64.6 mm | 11 | V |
| 23 | 20.98 mm | 65.9 mm | 11½ | W |
| 24 | 21.39 mm | 67.2 mm | 12 | X |
| 25 | 21.79 mm | 68.5 mm | 12½ | Y |
| 26 | 22.20 mm | 69.7 mm | 13 | Z |
| 27 | 22.61 mm | 71.0 mm | 13½ | Z+1 |
| 28 | 23.01 mm | 72.3 mm | 14 | Z+2 |
| 29 | 23.42 mm | 73.6 mm | 14½ | Z+3 |
| 30 | 23.83 mm | 74.8 mm | 15 | Z+4 |
Still not certain?
Send us a photograph of your ruler against the ring and we will read the size for you. It takes a minute, and it is far quicker than sending a piece back.
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