Find The
Perfect Ring Size

Find The
Perfect Ring Size

As Easy As 1, 2, 3

Pick A, B or C to find the perfect ring size.

A. ring size chart
B. measure an existing ring
C. mobile ring sizer

A - Ring Size Chart

Use the helpful conversion chart below to find the right size for your chosen rings. On our website we use US & Canada sizes.

Moon Magic Size USA & Canada Circumference Diameter
4 4 46.89 14.9
5 5 49.41 15.7
6 6 51.93 16.5
7 7 54.44 17.3
8 8 56.96 18.1
9 9 59.48 18.9
10 10 62.31 19.8
11 11 64 20.6
12 12 66.51 21.4
13 13 69 22.2
Moon Magic Size Europe Circumference Diameter
4 48 48.15 15.3
5 50 50.04 15.9
6 52 52.24 16.6
7 54 54.13 17.2
8 56 56.02 17.8
9 58 57.90 18.4
10 60 60.42 19.2
11 62 62.34 19.89
12 64 64.6 20.57
13 66 65.9 21.34
Europe
Moon Magic Size Europe Circumference Diameter
4 48 48.15 15.3
5 50 50.04 15.9
6 52 52.24 16.6
7 54 54.13 17.2
8 56 56.02 17.8
9 58 57.90 18.4
10 60 60.42 19.2
11 62 62.34 19.89
12 64 64.6 20.57
13 66 65.9 21.34
US & CANADA
Moon Magic Size USA & Canada Circumference Diameter
4 4 46.89 14.9
5 5 49.41 15.7
6 6 51.93 16.5
7 7 54.44 17.3
8 8 56.96 18.1
9 9 59.48 18.9
10 10 62.31 19.8
11 11 64 20.6
12 12 66.51 21.4
13 13 69 22.2

B - Measure An Existing Ring

1. Select an existing ring that fits the desired finger.

2. Measure the internal diameter of the ring (in mm).

3. Type your result (in mm) into the first box below.

Ring Measurement Ring Measurement
Moonmagic Ring Sizer

C - Mobile Ring Sizer

3 easy steps to the perfect size

With our handy ring sizer

1. Visit: ringsizer.moonmagic.com on your phone

2. Choose between ‘I have a ring’ or ‘I don’t have a ring’

3. Follow our easy instructions & find your size in seconds

Moonmagic Ring Sizer

Still Unsure?

Discover our sizeless gemstone jewelry collections. No size, no worries.