Ring Size

How To Measure

Let us help you find the perfect fit! Remember to measure the correct finger on the correct hand, as they'll vary in size. To ensure that the ring fits over your knuckle, we recommend measuring when your hands are warm, as cold weather can shrink your finger

Measure an existing ring:

1. Find a ring that fits the finger on which you'd like to wear your by charlotte ring.

2. Take a ruler or measuring tape and measure the inner diameter of the ring.

3. Take a note of the millimetres, not centimetres.

4. Use our size chart above to find your perfect size.

Measure your finger:

1. Cut a string so that it's approximately 10cm long.

2. Wrap the string around your finger where you would like your ring to sit.

3. Mark the piece of string where one end meets the other.

4. Unwrap the string and use a ruler or measuring tape to measure the length in millimetres.

5. Use our size chart above to find your perfect ring size.

Ring Size
North American Standard Internal Diameter British Standard
US & Canada in mm Equivalent
¼
 12.04
A
¾
 12.24
A½
1
 12.45
B
1¼
 12.65
B½
1½
 12.90
C
1¾
 13.06
C½
2
 13.26
D
2¼
 13.46
D½
2½
 13.66
E
2¾
 13.87
E½
3
 14.07
F
3⅛
 14.17
F½
3⅜
 14.38
G
3⅝
 14.58
G½
3¾
 14.80
H
4
 15.00
H½
4¼
 15.20
I
4½
 15.40
I½
4¾
 15.60
J
5
 15.80
J½
5¼
 16.00
K
5½
 16.20
K½
5¾
 16.40
L
6
 16.60
L½
6¼
 16.80
M
North American Standard Internal Diameter British Standard
US & Canada in mm Equivalent
6½
 17.00
M½
6¾
 17.20
N
7
 17.40
N½
7¼
 17.60
O
7½
 17.80
O½
7¾
 18.00
P
8
 18.20
P½
8¼
 18.40
Q
8½
 18.60
Q½
8¾
 18.80
R
9
 19.00
R½
9¼
 19.20
S
9½
 19.40
S½
9¾
 19.60
T
10
 19.80
T½
10 ¼
 20.00
U
10½
 20.20
U½
10¾
 20.40
V
11
 20.60
V½
11¼
 20.80
W
11½
 21.00
W½
11¾
 21.20
X
12
 21.40
X½
12¼
 21.60
Y
12½
 21.80
Y½
12¾
 22.00
Z