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Glam Fame Journal

How do I measure my ring size in mm?

Author

Sophia Dalton

Updated on March 29, 2026

How do I measure my ring size in mm?

You can measure your ring size using a string or floss. Wrap a string around your finger, marking where it first overlaps with a pen. Then, unwrap it and take down its length in millimeters.

What ring size is 54mm?

length to ring size conversion chart

LengthDiam.Size*
2.0″ [50.3mm]16.0mm5.5
2.06″ [51.5mm]16.4mm6
2.13″ [52.8mm]16.8mm6.5
2.19″ [54mm]17.2mm7

What are UK ring sizes in mm?

Know & Measure Your Ring Size

Ring Size (UK)Circumference (mm)
J48.7
K50.0
L51.2
M52.5

How many MM is a size 7 ring?

Find your ring size

Millimeters
616.551.9
6.516.953.1
717.354.4
7.517.755.7

What size is a 20 mm ring?

Ring Size Conversion Chart

Ring Diameter (MM)USA/CanadaJapan
19.8 mm.1020
20.2 mm.10½22
20.6 mm.1123
21.0 mm.11½24

How many MM is a 6.5 ring?

How to determine your Ring Size?

RING SIZE to MILLIMETER ( circumference)
Size 5.550.3 mm64.7 mm
Size 651.7 mm66.0 mm
Size 6.553.1 mm67.2 mm
Size 754.3 mm68.5 mm

How do I measure my UK ring size in mm?

How to measure ring size

  1. Decide which finger the ring will be worn on and grab a length of string, a felt tip pen and a ruler.
  2. Take the string and wrap it around the base of your finger.
  3. Using the pen, make a mark where the string crosses over.
  4. Use the ruler to measure the marked length of string in mm.

What ring size is 20mm UK?

Download the Lily Blanche ring sizing pdf

UK SIZEUS SIZEDIAMETER (mm)
S19.2mm
T1019.6mm
U10½20mm
V1120.4mm

Is a size 7 ring big or small?

The average ring size for women is a size 7, and size 7 is the most popular ring size for women. The most common range for them is between size 6 and size 8.