Rio Grande
Sharing your passion for making jewelry.
Products. Service. Know-how.
800-545-6566     riogrande.com


Qty*
Price
1 - 2
$36.00
3 - 5
$34.00
6 - 11
$32.00
12 - 23
$30.00
* The price for higher quantity price breaks will appear in your shopping cart.

 *Priced per pack of 100

Multi-Sizer Adjustable Finger Gauge

Item Number: 116213

Keep this inexpensive finger gauge on hand for anyone who can’t come into your store to be measured. Your customer simply adjusts the sizer to fit and returns it to you. Measures U.S. sizes 1–17 in ½ -size increments


How To
How To Size Rings Accurately
To ensure an accurate ring size (or an accurate size on any circular jewelry piece), add the wire diameter (or the bar-stock thickness) to the finished inside diameter you want and multiply by pi (3.14).

1  Start with the desired inside diameter of the finished ring.
2  Add the wire diameter or metal thickness.
3  Multiply the result by pi (3.14).
4  This is the length of material you will need to cut to achieve your desired final result.



Charts

Ring Size Comparison Chart
Please Note: All equivalents are approximate.
US. &
Canadian
Standard
Inside
Diameter
mm/inches
Inside
Circumference
mm/inches
Equivalents
British French German Swiss
1 ½ 12.78/.503 40.2/1.580 C 40 ½ 12¾
2 13.21/.520 41.5/1.634 D 41 ½ 13¼ 2
2 ½ 13.61/.536 42.7/1.684 E 42¾ 13¾ 3
3 14.05/.553 44.0/1.739 F 44 14 4
3 ½ 14.45/.569 45.2/1.788 G 45¼ 14 ½
4 14.86/.585 46.5/1.836 H ½ 46 ½ 15 7
4 ½ 15.27/.601 47.8/1.888 I ½ 47¾ 15¼ 8
5 15.70/.618 49.0/1.941 j ½ 49 15¾ 9
5 ½ 16.10/.634 50.2/1.992 L 50¼ 16
6 16.51/.650 51.5/2.042 M 51 ½ 16 ½ 12
6 ½ 16.92/.666 52.8/2.092 N 52¾ 17 13
7 17.35/.683 54.0/2.146 N ½ 54 17¼ 14
7 ½ 17.63/.699 55.3/2.196 O ½ 55 ½ 17 ½ 15
8 18.19/.716 56.6/2.249 P ½ 56¾ 18 16
8 ½ 18.59/.732 57.8/2.300 Q ½ 58 18 ½ 17
9 18.99/.748 59.1/2.350 R ½ 59¼ 19 18
9 ½ 19.41/.764 60.3/2.400 S ½ 60 ½ 19 ½ 19
10 19.84/.781 61.6/2.463 T ½ 61¾ 20 20
10 ½ 20.24/.797 62.8/2.504 U ½ 62¾ 20¼ 22
11 20.68/.814 64.1/2.567 V ½ 64 ½ 20¾ 23
11 ½ 21.01/.830 66.0/2.608 W ½ 66 21 24
12 21.41/.846 67.3/2.658 Y 67¼ 21 ½ 25