Method 1: Measuring a Ring

Pick a ring that fits on your desired finger. Measure the inner diameter of the ring. Match your measurement to the corresponding size by referring to the chart below.

Silver ring on a measuring tape for size measurement

Method 2: Measuring a Finger

Use a measuring tape and wrap it around your desired finger to obtain the circumference. Match your measurement to the corresponding size by referring to the chart below.

*If you don't have a measuring tape, you can simply use a strip of paper or cotton thread and wrap it around your desired finger. Make a mark where it intersects and measure the length of it to obtain the circumference, then refer to the chart below.

Measuring tape on index finger for ring size measurements

Size Guide Table

 
Inner Diameter
(cm)
1.30
1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70
Inner Circumference
(cm)
4.10 4.25 4.39 4.55 4.71 4.87 5.02 5.18 5.34
International Size
4 5 6 7 8 9 10 11 12
US Size
 2 2.5 3 4 4.5 5 6 6.5 7

 

Inner Diameter
(cm)
1.75
1.80 1.85 1.90 1.95 2.00 2.05 2.10 2.15
Inner Circumference
(cm)
5.50 5.65 5.81 5.97 6.12 6.28 6.44 6.59 6.75
International Size
13 14 15 16 17 18 19 20 21
US Size
7.5 8 9 9.5 10 10.5 11 11.5 12