Using a ring and a ring sizer:
If you have a ring that is perfectly adjusted to the finger to which you will wear your new ring, you can place it on the circle with the nearest diameter in the size chart for the rings. The inner perimeter of the ring must be aligned with the outer contour of the circle. If your ring is between two sizes, MAD LORDS vous recommends choosing the largest.

Measuring the finger:
To measure your finger, you can use a tape meter. The number on the alignment of the opening edges indicates the internal circumference. The number you've got is your finger size. Ex: Your finger circumference is 61 mm. Your ring size is 61.

Inner diameter in mm
 French size
UK size
US size
14
44
F
3
14,3
45
G
3,5
15
47
H 1/2
4
15,3
48
I 1/2
4,5
15,6
49
J 1/2
5
15,9
50
K 1/2
5,5
16,2
51
L
5,75
16,5
52
M
6
16,8
53
N
6,5
17,1
54
O
7
17,4
55
P
7,5
17,7
56
P 1/2
7,75
18
57
Q
8
18,3
58
R
8,5
18,6
59
S 1/2
9
18,9
60
S
9,5
19,2
61
T
9,75
19,5
62
T 1/2
10
20,1
64
V 1/2
11
20,4
65
W 1/2
11,5
20,7
66
X
11,75
21
67
Y
12
21,3
68
Z
12,5
21,6
69
Z + 1
13

 

If your size is not available, contact us!

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