Ring Size Guide

International Ring Sizing Chart

Diameter (mm) Circumference (mm) US & CA UK & AU Europe
14.1 44.2 3 F 1/2 44
14.5 45.5 3.5 G 1/2 —
14.9 46.8 4 H 1/2 47
15.3 48 4.5 I 1/2 48
15.7 49.3 5 J 1/2 49
16.1 50.6 5.5 K 1/2 —
16.5 51.9 6 L 1/2 52
16.9 53.1 6.5 M 1/2 53
17.3 54.4 7 N 1/2 54
17.7 55.7 7.5 O 1/2 —
18.1 57 8 P 1/2 57
18.5 58.3 8.5 Q 1/2 58
19 59.5 9 R 1/2 —
19.4 60.8 9.5 S 1/2 61
19.8 62.1 10 T 1/2 62
20.2 63.4 10.5 U 1/2 63
20.6 64.6 11 V 1/2 —
21 65.9 11.5 W 1/2 66
21.4 67.2 12 X 1/2 67
21.8 68.5 12.5 Z 68

(*Diameter measurements may vary by ±0.2mm)

How to Determine Your Ring Size

Paper Slip & Ruler Method

  1. Wrap the Paper Slip: Wrap a paper strip snugly around the base of your finger.
  2. Mark the Intersection: Mark where the paper overlaps itself.
  3. Measure the Length: Flatten the paper and measure its length (in mm) with a ruler.
  4. Find Your Size: Match the measurement to the circumference column in the sizing chart above.

Helpful Tips

  • Ensure the ring fits snugly but can slide over your knuckle comfortably.
  • If your knuckle is significantly larger, measure both the knuckle and finger base, choosing a size in between.
  • Measure in the evening when fingers are warm for better accuracy.
  • Repeat the measurement a few times to confirm consistency.