Ring Size Guide

✨ Method 1: Measure Your Finger

Perfect for new rings or surprise gifts

1. Wrap & Mark

  • Cut a strip of paper (or non-stretch string).
  • Tightly wrap it around the base of your finger where the ring will sit.
  • Pro Tip: Pull snug—this prevents sizing errors!

2. Mark the Spot

  • Use a pen to mark where the paper overlaps.

3. Measure & Match

  • Lay the paper flat and measure its length in millimeters (mm).
  • Match this measurement to the size chart below.

 

Finger Circumference (mm) US Size EU Size China Size

AU/UK Size

 Japan Size
44.2 3 44.2 4 F 7
47.8 4 47.8 8 H 9
50.0 5 50.0 10 J½ 11
52.5 6 52.5 12 N½ 13
53.8 6.5 53.8 14 O½ 14
54.5 7 54.5 15 P½ 15
55.2 7.5 55.2 16 Q½ 16
57.0 8 57.0 17 R½ 17
58.3 8.5 58.3 18 S½ 18
59.5 9 59.5 19 T½ 19
61.2 10 61.2 21 U½ 21
62.1 10.5 62.1 22 V½ 22
63.4 11 63.4 23 W½ 23
66.0 12 66.0 26 Y½ 25
67.6 13 67.6 28 Z+2 27

 

💍 Method 2: Measure a Ring You Own

Ideal for duplicating a perfect fit

1. Grab Your Favourite Ring

  • Choose one that fits the finger you’re sizing for.

2. Measure the Inner Diameter

  • Place a ruler across the ring’s center.
  • Record the inner diameter in mm (edge to edge).

3. Use the Chart

  • Find your mm measurement on the sizing chart.
Ring Diameter (mm) US Size EU Size China Size UK/AU Size Japan Size
14.1 3 44.2 4 F 7
15.3 4 47.8 8 H 9
16.0 5 50.0 10 J½ 11
16.5 6 52.5 12 N½ 13
16.9 6.5 53.8 14 O½ 14
17.3 7 54.5 15 P½ 15
17.7 7.5 55.2 16 Q½ 16
18.1 8 57.0 17 R½ 17
18.5 8.5 58.3 18 S½ 18
19.0 9 59.5 19 T½ 19
19.4 10 61.2 21 U½ 21
19.8 10.5 62.1 22 V½ 22
20.2 11 63.4 23 W½ 23
21.0 12 66.0 26 Y½ 25
21.4 13 67.6 28 Z+2 27

🔥 Pro Tips for Flawless Sizing

  • Timing is Key: Measure fingers at the end of the day (they swell slightly).
  • Knuckle Check: If knuckles are wider than your finger base, choose a size between both measurements.
  • Test the Fit: A perfect ring slides over knuckles smoothly but won’t fall off when shaking your hand.

 

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