RING SIZES

Diameter (mm)	US Size	UK Size	EU Size
14.9	4	H	47
15.7	5	J	49
16.5	6	L	52
17.3	7	N	55
18.1	8	P	58
19.0	9	R	60-61
19.8	10	T	63
20.6	11	V	66
21.4	12	X	68-69

Step-by-Step Guide to Determine Ring Size

1. Find a Ring that Fits Well:
• Choose a ring that fits the finger for which you want to determine the size.
2. Measure the Inner Diameter:
• Tools Needed: A ruler or a vernier caliper (if available) for better precision.
• Place the ring on a flat surface.
• Measure the inner diameter of the ring. Ensure you measure the widest point of the inner circle.
3. Measurement Process:
• Using a Ruler:
• Align the zero mark of the ruler with the inner edge of the ring.
• Measure straight across to the opposite inner edge.
• Note the measurement in millimeters (mm) as precisely as possible.
• Using a Vernier Caliper (recommended for higher precision):
• Open the caliper slightly larger than the ring.
• Place the caliper inside the ring and close it until it touches both inner edges.
• Read the measurement on the caliper in millimeters.
4. Convert Diameter to Ring Size:
• Use the measured inner diameter to find your ring size using a ring size conversion chart.

Ring Size Conversion Chart (Diameter to Ring Size):

Diameter (mm)	US Size	UK Size	EU Size
14.9	4	H	47
15.7	5	J	49
16.5	6	L	52
17.3	7	N	55
18.1	8	P	58
19.0	9	R	60-61
19.8	10	T	63
20.6	11	V	66
21.4	12	X	68-69

 

Example:

If the inner diameter of your ring is 17.3 mm:

• Look up 17.3 mm in the chart.
• 17.3 mm corresponds to a US ring size of 7 and a UK ring size of N.

By following these steps, you should be able to accurately determine your ring size at home.

NOTE: Our rings are in US-American sizes. If you already know your European or UK size, you can find the corresponding US size in our size chart above.

For example, if your European size is 55, your US size is 7.