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Ring Size Chart

Ring Size Advice

  1. It's essential to measure the correct finger on the appropriate hand, as our dominant hands typically have slightly larger fingers.
  2. Keep in mind that rings with broader bands will feel a bit snugger. If you're measuring one of your partner's rings, opt for one with a similar width to the ring you intend to buy.
  3. Ensure that the finger being measured is at a normal body temperature, as fingers can contract or expand in response to temperature variations.
  4. Because your finger size can fluctuate during the day, it's advisable to measure your finger at the day's end.
  5. For those with larger knuckles, take two measurements and choose a size in between to ensure the ring fits over the knuckle but isn't too loose, preventing it from shifting around.
  6. If you're planning a surprise proposal, refer to our guidelines on How to Determine Ring Size for a Surprise Proposal.
  7. When uncertain about your partner's ring size, opting for a standard size is a prudent choice. On average, women's ring sizes range from 6 to 7, while men's average ring sizes fall between 9 and 10.

Lightmark rings are specified in standard US sizes. View the conversion chart to see how US sizes map to finger circumference, as well as how US sizes convert to Canada, Australia, UK and other countries.

Inside Circumference US, Canada, Mexico UK, Australia, Ireland, New Zealand, South Africa France Germany, Russia, Ukraine, Asia India, China, Japan, South America, Turkey, Israel Italy, Spain, Netherlands, Switzerland
IN MM
1.74 44.2 3 F 44 14 4 4
1.77 44.8 3.25 F 1/2 44.625 14.25 --- 4.625
1.79 45.5 3.5 G 45.25 14.5 5 5.25
1.82 46.1 3.75 G 1/2 45.875 14.75 6 5.875
1.84 46.8 4 H 46.5 15 7 6.5
1.87 47.4 4.25 H 1/2 47.125 15.25 --- 7.125
1.89 48 4.5 I 47.75 15.5 8 7.75
1.92 48.7 4.75 J 48.375 --- --- 8.375
1.94 49.3 5 J 1/2 49 15.75 9 9
1.97 50 5.25 K 49.625 16 --- 9.625
1.99 50.6 5.5 K 1/2 50.25 16.25 10 10.25
2.02 51.2 5.75 L 50.875 --- 11 10.875
2.04 51.9 6 L 1/2 51.5 16.5 12 11.5
2.07 52.5 6.25 M 52.125 16.75 --- 12.125
2.09 53.1 6.5 M 1/2 52.75 17 13 12.75
2.12 53.8 6.75 N 53.375 --- --- 13.375
2.14 54.4 7 N 1/2 54 17.25 14 14
2.17 55.1 7.25 O 54.625 17.5 --- 14.625
2.19 55.7 7.5 O 1/2 55.25 17.75 15 15.25
2.22 56.3 7.75 P 55.875 --- --- 15.875
2.24 57 8 P 1/2 56.5 18 16 16.5
2.27 57.6 8.25 Q 57.125 18.25 --- 7.125
2.29 58.3 8.5 Q 1/2 57.75 18.5 17 17.75
2.32 58.9 8.75 R 58.375 18.75 --- 18.375
2.34 59.5 9 R 1/2 59 19 18 19
2.37 60.2 9.25 S 59.625 19.25 --- 19.625
2.39 60.8 9.5 S 1/2 60.25 19.5 19 20.25
2.42 61.4 9.75 T 60.875 19.75 --- 20.875
2.44 62.1 10 T 1/2 61.5 20 20 21.25
2.47 62.7 10.25 U 62.125 20.25 21 22.125
2.49 63.4 10.5 U 1/2 62.75 20.5 22 22.75
2.52 64 10.75 V 63.375 --- --- 23.375
2.54 64.6 11 V 1/2 64 20.75 23 24
2.57 65.3 11.25 W 64.625 --- --- 24.625
2.59 65.9 11.5 W 1/2 65.25 21 24 25.25
2.62 66.6 11.75 X 65.875 --- --- 25.875
2.65 67.2 12 X 1/2 66.5 21.25 25 26.5
2.68 68.1 12.25 Y 67.125 21.5 --- 27.125
2.71 68.5 12.5 Z 67.75 21.75 26 27.75
2.72 69.1 12.75 Z 1/2 68.375 --- --- 28.375
2.75 69.7 13 --- 69 22 27 29

Request a Free Ring Sizer

Please contact us

We are happy to send you a complimentary ring sizer so that you can easily measure your ring size at home. Ring sizers shipped to the US and Canada will arrive within five to seven business days and delivery time to the UK and Australia may take longer.

September 03, 2026 06:27