International Finger Size Conversion Chart

Loose Diamonds Atlanta - The Ross Jewelry Company

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We receive questions about finger size conversions from all over the world. After a worldwide search for charts and information about finger sizing in various countries, we have adapted the chart below . . . which converts Great Britain, European, and Japanese finger sizes to standard sizing used in the United States. This chart should help you convert ring sizes to the exact size or be very close. We hope this information is helpful.

Warm regards from Atlanta, Georgia U.S.A.

Find Your Converted Finger Size on the Chart Below

England	Europe	Japan	USA	Diameter	Circumference
			0	11.54	36.25
A				11.90	37.38
		0		12.00	37.70
A¹/₂				12.10	38.01
B				12.30	38.64
			1	12.37	38.86
B¹/₂				12.50	39.27
			1¹/₄	12.58	39.52
C				12.70	39.90
	0.15		1¹/₂	12.78	40.15
C¹/₂	0.53			12.90	40.53
	0.84	1	1³/₄	13.00	40.84
	1.00			13.05	41.00
D	1.15			13.10	41.15
	1.50		2	13.21	41.50

England Europe Japan USA Diameter Circumference
D¹/₂ 1.78 13.30 41.78
1.88 2 13.33 41.88
2.00 13.37 42.00
2.13 2¹/₄ 13.41 42.13
E 2.41 13.50 42.41
2.76 2¹/₂ 13.61 42.76
2.91 3 13.66 42.91
E¹/₂ 3.00 13.69 43.00
3.42 2³/₄ 13.82 43.42
F 3.67 13.90 43.67
3.98 4 14.00 43.98
4.00 14.01 44.00
4.14 3 14.05 44.14

England Europe Japan USA Diameter Circumference
F¹/₂ 4.30 14.10 44.30
4.74 3¹/₄ 14.24 44.74
G 4.92 14.30 44.92
5.00 14.32 45.00
5.02 5 14.33 45.02
5.40 3¹/₂ 14.45 45.40
G¹/₂ 5.55 14.50 45.55
6.00 14.64 46.00
6.02 3³/₄ 14.65 46.02
6.06 6 14.66 46.06
H 6.18 14.70 46.18
6.68 4 14.86 46.68

England Europe Japan USA Diameter Circumference
H¹/₂ 6.81 14.90 46.81
7.00 14.96 47.00
7.12 7 15.00 47.12
7.34 4¹/₄ 15.07 47.34
I 7.44 15.10 47.44
7.97 4¹/₂ 15.27 47.97
8.00 15.28 48.00
I¹/₂ 8.07 15.30 48.07
8.16 8 15.33 48.16
8.63 4³/₄ 15.48 48.63
J 8.69 15.50 48.69
9.00 15.60 49.00
9.20 9 15.66 49.20

England Europe Japan USA Diameter Circumference
J¹/₂ 9.32 5 15.70 49.32
K 9.95 5¹/₄ 15.90 49.95
10.00 15.92 50.00
10.27 10 16.00 50.27
K¹/₂ 10.58 5¹/₂ 16.10 50.58
11.00 16.23 51.00
L 11.24 5³/₄ 16.31 51.24
11.30 11 16.33 51.30
L¹/₂ 11.87 6 16.51 51.87
12.00 16.55 52.00
12.34 12 16.66 52.34
M 12.46 16.70 52.46
12.56 6¹/₄ 16.73 52.56
13.00 16.87 53.00

England Europe Japan USA Diameter Circumference
M¹/₂ 13.09 16.90 53.09
13.16 6¹/₂ 16.92 53.16
13.41 13 17.00 53.41
N 13.72 17.10 53.72
13.85 6³/₄ 17.14 53.85
14.00 17.19 54.00
N¹/₂ 14.35 17.30 54.35
14.44 14 17.33 54.44
14.51 7 17.35 54.51
O 14.98 17.50 54.98
15.00 7¹/₄ 17.56 55.00
15.48 15 17.66 55.48

England Europe Japan USA Diameter Circumference
O¹/₂ 15.61 17.70 55.61
15.76 7¹/₂ 17.76 55.76
16.00 17.83 56.00
P 16.23 17.90 56.23
16.45 7³/₄ 17.97 56.45
16.55 16 18.00 56.55
P¹/₂ 16.86 18.10 56.86
17.00 18.14 57.00
17.15 8 18.19 57.15
Q 17.49 18.30 57.49
17.59 17 18.33 57.59
17.77 8¹/₄ 18.39 57.77
18.00 18.46 58.00

England Europe Japan USA Diameter Circumference
Q¹/₂ 18.12 18.50 58.12
18.40 8¹/₂ 18.59 58.40
18.62 18 18.66 58.62
R 18³/₄ 18.70 58.77
19.00 8³/₄ 18.78 59.00
R¹/₂ 19.38 18.90 59.38
19.66 9 18.99 59.66
19.69 19 19.00 59.69
S 20.00 19.10 60.00
20.38 9¹/₄ 19.22 60.38
S¹/₂ 20.63 19.30 60.63
20.73 20 19.33 60.73
20.98 9¹/₂ 19.41 60.98
21.00 19.42 61.00

England Europe Japan USA Diameter Circumference
T 21.26 19.50 61.26
21.67 9³/₄ 19.63 61.67
21.76 21 19.66 61.76
T¹/₂ 21.89 19.70 61.89
22.00 19.74 62.00
22.33 10 19.84 62.33
U 22.52 19.90 62.52
22.83 22 20.00 62.83
23.00 10¹/₄ 20.05 63.00
U¹/₂ 23.15 20.10 63.15
23.59 10¹/₂ 20.24 63.59

England Europe Japan USA Diameter Circumference
V 23.77 20.30 63.77
23.87 23 20.33 63.87
23.99 20.37 63.99
24.28 10³/₄ 20.46 64.28
V¹/₂ 24.40 20.50 64.40
24.91 24 20.66 64.91
24.97 11 20.68 64.97
W 25.00 20.69 65.00
25.60 11¹/₄ 20.88 65.60

England Europe Japan USA Diameter Circumference
W¹/₂ 25.66 20.90 65.66
25.97 25 21.00 65.97
26.00 21.01 66.00
26.22 11¹/₂ 21.08 66.22
X 26.29 21.10 66.29
X¹/₂ 26.92 10³/₄ 21.30 66.92
27.01 26 21.33 67.01
Y 27.51 12 21.49 67.51
28.02 21.65 68.02
28.05 27 21.66 68.05
Y¹/₂ 28.20 12¹/₄ 21.71 68.20
Z 28.77 12¹/₂ 21.89 68.77
28.99 21.96 68.99
29.12 28 22.00 69.12

England Europe Japan USA Diameter Circumference
Z¹/₂ 29.43 22.10 69.43
29.49 12³/₄ 22.12 69.49
Z+1 29.99 22.28 69.99
30.15 29 13 22.33 70.15
Z+1¹/₂ 30.69 22.50 70.69
30.81 13¹/₄ 22.54 70.81
31.00 22.60 71.00
31.19 30 22.66 71.19
Z+2 31.31 22.70 71.31
31.47 13¹/₂ 22.77 71.47
Z+2¹/₂ 32.01 13³/₄ 22.92 72.01
32.26 31 23.00 72.26

England Europe Japan USA Diameter Circumference
Z+3 32.57 23.10 72.57
32.76 14 23.16 72.76
33.01 23.24 73.01
Z+3¹/₂ 33.20 23.30 73.20
33.32 23.34 73.32
33.29 32 23.33 73.29
33.42 14¹/₄ 23.37 73.42
Z+4 33.83 23.50 73.83
33.98 14¹/₂ 23.55 73.98
34.33 33 23.66 74.33
Z+4¹/₂ 34.46 23.70 74.46
34.71 14³/₄ 23.78 74.71
34.99 23.87 74.99

England Europe Japan USA Diameter Circumference
Z+5 35.08 23.90 75.08
35.40 34 15 24.00 75.40
Z+5¹/₂ 35.71 24.10 75.71
36.00 15¹/₄ 24.19 76.00
Z+6 36.34 24.30 76.34
36.43 35 24.33 76.43
36.69 15¹/₂ 24.41 76.69
Z+6¹/₂ 37.00 24.51 77.00
37.31 15³/₄ 24.61 77.31
37.47 36 24.66 77.47
Z+7 37.60 24.70 77.60
38.00 16 24.83 78.00
Z+7¹/₂ 38.23 24.90 78.23
38.54 37 16¹/₄ 25.00 78.54

Technical Information:
Diameter = Internal diameter in millimeters.
Circumference = Internal circumference in millimeters.

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