Jewelry Size Guide

Free Jewelry Sizer + Jewelry Size Chart: How To Measure Jewelry Size

We've made measuring your jewelry size at home easy with our free jewelry sizer, printable jewelry size chart, and step-by-step methods to help you find the perfect fit.

  • Ring
  • Necklace
  • Bracelet
ring size setup 1
ring size setup 2

This is a chart that will be extremely helpful for you to determine the ring size that you need. You can either make use of a tape or a small piece of string to measure the area that will be occupied by the ring. When it becomes a complete circle, make a mark on such string. This will be helpful for you to compare with the chart that is mentioned below.

US,CA,MX Britain Inside Circum (MM)
3 F 44.2
3.25 F 3/4 44.8
3.5 G 1/4 45.5
3.75 H 46.1
4 H 1/2 46.8
4.25 I 47.4
4.5 I 1/2 48
4.75 J 1/4 48.7
5 J 1/2 49.3
5.25 K 1/4 50
5.5 L 50.6
5.75 L 1/4 51.2
6 M 51.9
6.25 M 1/2 52.5
6.5 N 53.1
6.75 N 1/2 53.8
7 O 54.4
7.25 O 1/2 55.1
7.5 P 55.7
7.75 P 1/2 56.3
8 Q 57
8.25 Q 1/2 57.6
8.5 Q 3/4 58.3
8.75 R 1/4 58.9
9 R 3/4 59.5
9.25 S 1/4 60.2
9.5 S 3/4 60.8
9.75 T 1/4 61.4
10 T 1/2 62.1
10.25 U 62.7
10.5 U 1/2 63.4
10.75 V 1/4 64
11 V 1/2 64.6
11.25 W 1/4 65.3
11.5 W 3/4 65.9
11.75 X 1/4 66.6
12 Y 67.2
12.25 Y 1/2 68.1
12.5 Z 68.5
12.75 Z + 1/2 69.1
13 Z + 1 69.7

Find your fit

Jewelbuys uses standard US rings sizes. Refer to our measurement chart or the ruler found in our size guide.