6.5 cm to mm ring size

What You Will Need:

  • Piece of Paper
  • Pencil/Pen
  • Ruler
  • Scissors

6.5 cm to mm ring size

Required Materials

Step #1

Cut a long thin strip of paper (less than 1/2 inch wide, any length).

6.5 cm to mm ring size

Cut Strip of Paper

Step #2

Wrap the strip of paper around the finger ensuring that the paper is placed just below the knuckle and mark the paper where is first overlaps.

6.5 cm to mm ring size

Mark Measurement Strip

Step #3

Lay the strip of paper flat and measure in millimeters from the start of the paper to the mark you made in step #2 (round to the nearest mm).

6.5 cm to mm ring size

Measure with Ruler

Step #4

Enter your measurement (in millimeters)

Your Ring Size Is:

Ring Size Measurements
Finger Circumference Ring Size
(cm) (mm) USA &
Canada
UK, EIRA, AU
4.9 49.32 5 J1/2
5.2 51.83 6 L1/2
5.4 54.34 7 N1/2
5.7 57.17 8 P1/2
5.9 59.37 9 R1/2
6.2 62.20 10 T1/2
6.5 64.71 11 V1/2
6.7 66.91 12 X1/2
7.0 69.74 13 Z1/2
7.2 72.30 14 Z21/2
7.5 74.80 15 Z41/2

Keep in Mind…

  • Ring sizes are not universal across all brands and manufacturers: 
    AERA Rings uses Traditional US Ring Sizing. If ordering elsewhere, check your measurement against their sizing guide.
  • Big knuckles can affect your size: 
    If your knuckle is much larger than the base of your finger then measure both the base of your finger and your knuckle and use the average.
  • Finger size changes:
    Temperature, physical activity & medication can all affect the size of your fingers.  For an accurate measurement only measure when at room temperature and not physically active.
  • Bigger is always better:
    If you hesitate between two sizes, always go with the larger of the two. This will allow for finger swelling and future finger growth.

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What is my ring size if my finger is 7 cm?

THINGS NOT TO DO:.

Are rings measured in cm or MM?

International standard. ISO 8653:2016 defines standard ring sizes in terms of the inner circumference of the ring measured in millimetres.