Titanium Era Sizing Guide

The best way to determine your finger size is to visit at least one reputable jeweler. A second opinion is advised.

Some jewelers may disagree, but often there are discrepancies in the sizing tools made by different manufacturers.


If you want to place an online order to guarantee the sale price, you can do so, in the comment box clearly explain that you will call us back with the correct size, once determined by a jeweler. We will hold the order for a maximum of one week.

Most jewelers will have the following finger sizing tools.


Jeweler’s finger sizing tools


The narrow set should be used if you intend on wearing a narrow band, 5mm ring width or less.

The wider set should be used if you intend on wearing a band 6mm width or more.



If you are measured using the narrow sizing set, and plan to wear a wide band
(6mm or wider), you should add 0.25 or 0.5 more to the size.


Accurate ring sizing can be tricky. Everyone has different shaped fingers and knuckles. A well fitting ring should sit comfortably on the finger, and have some resistance coming off. Everyone’s hands changes throughout the day, swelling does occur. The best time of day to have your finger sized is in the afternoon.



If you are unsure about the exact size, it is always best to go with the slightly smaller size. We can increase a ring by a 0.25 size larger, but if it ends up too big it has to be remade.


Jewelers use two different methods of measuring.


Some jewelers measure from the center line of where the ring falls on the mandrel.



Other jewelers measure from the bottom line of the ring, where it lands on the ring mandrel. At Titanium Era, we use this method. The rings in the picture below measure American size 8 and 10 using our sizing method. All rings made by Titanium Era are comfort fit; the inside edges are rounded for a smooth comfortable fit.



Ring sizing mandrel


Titanium Era uses American/Canadian sizing to make all its rings, we offer a general size conversion table for other methods of sizing.

Titanium Era is not responsible for wrong sizes determined by customers using other companies sizing methods. IE: paper or string methods, etc. (These are NOT accurate)

Please note, European or International methods of sizing do not correspond exactly to North American sizing.

The most accurate way for European or International customers to determine their ring size is by using the inside diameter method. (In the comment box on the order form, give us the sizing ring diameter in mm’s to the second decimal point.) The sizing ring used for measuring should be the same width as the ring being ordered.



Conversion Chart

US/Canada
Ring sizes
Inner
Diameter
Inner
Diameter
Inner
Circumference
Inner
Circumference
British,
Irish,
Australian

sizes
Japanese
sizes
Swiss
sizes
Standard
(inches)
(mm)
(inches)
(mm)
Equivalent
Equivalent
Equivalent
0
0.458
11.6
1.438
36.5



1/4
0.466
11.8
1.463
37.2



1/2
0.474
12.0
1.488
37.8
A


3/4
0.482
12.2
1.513
38.4
A 1/2


1
0.490
12.4
1.539
39.1
B
1

1 1/4
0.498
12.6
1.564
39.7
B 1/2


1 1/2
0.506
12.9
1.589
40.4
C


1 3/4
0.514
13.1
1.614
41.0
C 1/2


2
0.522
13.3
1.639
41.6
D
2
1.50
2 1/4
0.530
13.5
1.664
42.3
D 1/2


2 1/2
0.538
13.7
1.689
42.9
E
3
2.75
2 3/4
0.546
13.9
1.714
43.5
E 1/2


3
0.554
14.1
1.740
44.2
F
4
4.00
3 1/4
0.562
14.3
1.765
44.8
F 1/2
5
5.25
3 1/2
0.570
14.5
1.790
45.5
G


3 3/4
0.578
14.7
1.815
46.1
G 1/2
6
6.50
4
0.586
14.9
1.840
46.7
H
7

4 1/4
0.594
15.1
1.865
47.4
H 1/2

7.75
4 1/2
0.602
15.3
1.890
48.0
I
8

4 3/4
0.610
15.5
1.915
48.7
J

9.00
5
0.618
15.7
1.941
49.3
J 1/2
9

5 1/4
0.626
15.9
1.966
49.9
K

10.00
5 1/2
0.634
16.1
1.991
50.6
K 1/2
10

5 3/4
0.642
16.3
2.016
51.2
L

11.75
6
0.650
16.5
2.041
51.8
L 1/2
11
12.75
6 1/4
0.658
16.7
2.066
52.5
M
12

6 1/2
0.666
16.9
2.091
53.1
M 1/2
13
14.00
6 3/4
0.674
17.1
2.116
53.8
N


7
0.682
17.3
2.141
54.4
N 1/2
14
15.25
7 1/4
0.690
17.5
2.167
55.0
O


7 1/2
0.698
17.7
2.192
55.7
O 1/2
15
16.50
7 3/4
0.706
17.9
2.217
56.3
P


8
0.714
18.1
2.242
56.9
P 1/2
16
17.75
8 1/4
0.722
18.3
2.267
57.6
Q


8 1/2
0.730
18.5
2.292
58.2
Q 1/2
17

8 3/4
0.738
18.7
2.317
58.9
R

19
9
0.746
18.9
2.342
59.5
R 1/2
18

9 1/4
0.754
19.2
2.368
60.1
S

20.25
9 1/2
0.762
19.4
2.393
60.8
S 1/2
19

9 3/4
0.770
19.6
2.418
61.4
T

21.5
10
0.778
19.8
2.443
62.1
T 1/2
20

10 1/4
0.786
20.0
2.468
62.7
U
21

10 1/2
0.794
20.2
2.493
63.3
U 1/2
22
22.75
10 3/4
0.802
20.4
2.518
64.0
V


11
0.810
20.6
2.543
64.6
V 1/2
23

11 1/4
0.818
20.8
2.569
65.2
W

25
11 1/2
0.826
21.0
2.594
65.9
W 1/2
24

11 3/4
0.834
21.2
2.619
66.5
X


12
0.842
21.4
2.644
67.2
X 1/2
25
27.50
12 1/4
0.850
21.6
2.669
67.8
Y


12 1/2
0.858
21.8
2.694
68.4
Z
26
28.75
12 3/4
0.866
22.0
2.719
69.1
Z 1/2


13
0.874
22.2
2.744
69.7

27

13 1/4
0.882
22.4
2.769
70.3
Z1


13 1/2
0.890
22.6
2.795
71.0



13 3/4
0.898
22.8
2.820
71.6
Z2


14
0.906
23.0
2.845
72.3
Z3


14 1/4
0.914
23.2
2.870
72.9



14 1/2
0.922
23.4
2.895
73.5
Z4


14 3/4
0.930
23.6
2.920
74.2



15
0.938
23.8
2.945
74.8



15 1/4
0.946
24.0
2.970
75.4



15 1/2
0.954
24.2
2.996
76.1



15 3/4
0.962
24.4
3.021
76.7



16
0.970
24.6
3.046
77.4






Titanium Era