GUIDANCE RING SIZE GUIDE
We comprehend the significance of discovering the ideal ring size to you,
whether you're seeking to buy for yourself or your significant other.
We're delighted to offer any assistance you require.

Ring Size Conversion Chart
UK | USA | GERMANY | ITALY | CIRCUMFERENCE (MM) | DIAMETER (MM) |
---|---|---|---|---|---|
38.00 | |||||
A | 39.00 | 37.70 | 12.00 | ||
A½ | 39.50 | 38.33 | 12.20 | ||
B | 40.00 | 38.96 | 12.40 | ||
B½ | 0.75 | 40.80 | 39.58 | 12.60 | |
C | 1.25 | 41.25 | 40.53 | 12.90 | |
C½ | 1.50 | 41.00 | 1.00 | 41.15 | 13.10 |
D | 1.75 | 42.00 | 2.00 | 41.78 | 13.30 |
D½ | 2.00 | 42.50 | 2.50 | 42.41 | 13.50 |
E | 2.25 | 43.50 | 3.50 | 43.04 | 13.70 |
E½ | 2.50 | 44.00 | 4.00 | 43.67 | 13.90 |
F | 2.75 | 44.50 | 4.50 | 44.30 | 14.10 |
F½ | 3.00 | 45.00 | 5.00 | 44.92 | 14.30 |
G | 3.25 | 45.50 | 5.50 | 45.55 | 14.50 |
G½ | 3.50 | 46.00 | 6.00 | 46.18 | 14.70 |
H | 3.75 | 47.00 | 7.00 | 46.81 | 14.90 |
H½ | 4.00 | 47.50 | 7.50 | 47.44 | 15.10 |
I | 4.25 | 48.00 | 8.00 | 48.07 | 15.30 |
I½ | 4.50 | 48.50 | 8.50 | 48.69 | 15.50 |
J | 4.75 | 49.50 | 9.50 | 49.32 | 15.70 |
J½ | 5.00 | 50.00 | 10.00 | 49.95 | 15.90 |
K | 5.25 | 50.50 | 10.50 | 50.58 | 16.10 |
K½ | 5.50 | 51.00 | 11.00 | 51.21 | 16.30 |
L | 5.75 | 52.00 | 12.00 | 51.84 | 16.50 |
L½ | 6.00 | 52.50 | 12.50 | 52.46 | 16.70 |
M | 6.25 | 53.00 | 13.00 | 53.09 | 16.90 |
M½ | 6.50 | 54.00 | 14.00 | 53.72 | 17.10 |
N | 6.75 | 54.50 | 14.50 | 54.35 | 17.30 |
N½ | 7.00 | 55.00 | 15.00 | 54.98 | 17.50 |
O | 7.25 | 55.75 | 15.75 | 55.61 | 17.70 |
O½ | 7.50 | 56.25 | 16.25 | 56.23 | 17.90 |
P | 7.75 | 57.00 | 17.00 | 56.86 | 18.10 |
P½ | 8.00 | 57.25 | 17.25 | 57.49 | 18.30 |
Q | 8.25 | 58.00 | 18.00 | 58.12 | 18.50 |
Q½ | 8.50 | 58.50 | 18.50 | 58.75 | 18.70 |
R | 8.75 | 59.50 | 19.50 | 59.38 | 18.90 |
R½ | 9.00 | 60.00 | 20.00 | 60.00 | 19.10 |
S | 9.25 | 60.50 | 20.50 | 60.63 | 19.30 |
S½ | 9.50 | 61.25 | 21.25 | 61.26 | 19.50 |
T | 9.75 | 62.00 | 22.00 | 61.89 | 19.70 |
T½ | 10.00 | 62.50 | 22.50 | 62.52 | 19.90 |
U | 10.50 | 63.00 | 23.00 | 63.15 | 20.10 |
U½ | 10.50 | 64.00 | 24.00 | 63.77 | 20.30 |
V | 10.75 | 64.25 | 24.25 | 64.40 | 20.50 |
V½ | 11.00 | 65.00 | 25.00 | 65.03 | 20.70 |
W | 11.25 | 65.50 | 25.50 | 65.66 | 20.90 |
W½ | 11.50 | 66.50 | 26.50 | 66.29 | 21.10 |
X | 11.75 | 67.00 | 27.00 | 66.92 | 21.30 |
X½ | 12.00 | 67.50 | 27.50 | 67.54 | 21.50 |
Y | 12.25 | 68.00 | 28.00 | 68.17 | 21.70 |
Y½ | 12.50 | 69.00 | 29.00 | 68.80 | 21.90 |
Z | 12.75 | 69.50 | 29.50 | 69.43 | 22.10 |
Z½ | 13.00 | 70.00 | 30.00 | 70.06 | 22.30 |
Ring Size Measuring Tips
- For improved accuracy, it is advisable to take your measurement three or four times.
- Your fingers have a tendency to swell during the day and are usually larger in the evening.
- To avoid any discomfort, we suggest measuring your fingers in the evening.
- Ring size can vary depending on the temperature; colder weather may cause your fingers to shrink slightly in size.
- If your measurement falls between two sizes, it is recommended to select the larger size for better comfort.
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