Size Guide

 Diameter
(in mm)
Circumference
(in mm)
US UK EUR
14.05 44.14 3 F 44
14.86 46.68 4 H 1/2 -
15.70 49.32 5 J 1/2 -
16.51 51.87 6 M 52 3/4
17.35 54.51 7 O 55 1/4
18.19 57.15 8 Q 57 3/4
18.89 59.34 9 R 3/4 -
19.84 62.33 10 T 1/2 -
20.68 64.97 11 V 1/2 -
21.49 67.51 12 Y 67 1/2
22.33 70.15 13 Z+1 -
23.06 72.45 14 Z+3 -
23.87 74.99 15 Z+5 -

View International Conversion Chart

How to find your size

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Measure a ring
(diameter)

Measure a finger
(circumference)

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Step 1: Find a ring that already fits you well. It’s better to use one with a band that isn’t too thick.

Step 2: Measure the internal diameter (mm) of your ring by measuring the distance between the inside of the upper edge to the inside of the lower edge.

Step 3: Using your measurement, find your size using the conversion chart at the top of this screen. (E.g. 17.3 mm = Size 7 US)

Ring on Ruller

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Step 1: Cut a piece of string, roughly 4 inches. Wrap the string around your finger. The string should sit comfortable, and not be too tight.

Step 2: Mark the overlapping parts with a pen.

Step 3: Measure the circumference by laying the string flat, and measure the 2 points in mm using a ruler or tape measure.

Step 4: Find the size in the conversion chart above. (E.g. 54.4 mm = Size 7 US)

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Ring sizing tips

  • Measure the finger you’ll wear the ring on. Your left and right ring fingers may be different sizes.
  • Measure a few times. Your hands will shrink when they’re cold and swell when they’re warm.
  • Measure in the evening. Your hands actually change size throughout the day.
  • Measure your knuckle if it’s bigger than the base of your finger so that your ring slides on easily.
  • Women tend to be a size 6–7 and men are usually a size 9–10.
  • If you’re between sizes, go with the closer size. If you’re perfectly between sizes, buy a size down and take your ring to a jeweler to be resized.

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