Ring Sizer

Find your perfect fit

Measure an existing ring

  1. Select an existing ring that fits the desired finger.

  2. Measure the internal diameter of the ring (in mm).

  3. Use the below chart to determine your ring size.

INTERNAL DIAMETER (MM) US/CAN RING SIZE UK/AUS RING SIZE GERMAN RING SIZE
14.1 3 F 14
14.9 4 H 15
15.7 5 J 15¾
16.5 6 L 16½
17.3 7 N 17¼
18.1 8 P 18
19.0 9 R 19
19.8 10 T 20
20.6 11 V 20¾
21.4 12 X 21¼
22.2 13 Z 22

Measure your finger

  1. Wrap a strip of paper around your finger where you’d like your ring to be.

  2. Make sure that the paper is pulled snug to your finger, the tighter the better, to find your best fit.

  3. Mark the spot where the paper meets and measure the distance with a ruler (mm).

  4. Use the below chart to determine your ring size.

CIRCUM-FERENCE (MM) US/CAN RING SIZE UK/AUS RING SIZE GERMAN RING SIZE
44.2 3 F 14
46.8 4 H 15
49.3 5 J 15¾
51.9 6 L 16½
54.4 7 N 17¼
57.0 8 P 18
59.5 9 R 19
62.1 10 T 20
64.6 11 V 20¾
67.2 12 X 21¼
67.7 13 Z 22

Tips & Tricks

  • Measure your fingers at the end of the day when they’re at their largest.

  • Cold weather can shrink your fingers up to half a size, so make sure they’re warm.

  • Lastly, alcohol and salt can make your fingers swell, so refrain from measuring them after cocktails and appetizers.