How to measure your ring size: a simple guide

Jun 20, 2024 | Jewelry tips

Finding the perfect ring size is crucial for comfort and ensuring your ring fits perfectly. Here’s a comprehensive guide to help you measure your ring size accurately and understand ring size conversions.

Step-by-step guide to measuring your ring size

  1. Use a Ring Size Chart:
    • Find a printable ring size chart online.
    • Print the chart and ensure it is printed to scale.
    • Place a ring that fits you well on the circles until you find one that matches the inner circumference of the ring.
  2. Use a String or Paper Strip:
    • Cut a piece of string or a thin strip of paper.
    • Wrap it around the base of your finger where the ring will sit.
    • Mark the point where the ends meet.
    • Measure the length of the string or paper in millimeters.
  3. Use a Ring Sizer Tool:
    • Purchase an adjustable ring sizer tool online or from a jeweler.
    • Follow the instructions to find your exact size.
  4. Visit a Jeweler:
    • For the most accurate measurement, visit a professional jeweler who can measure your ring size with precision.

Tips for measuring your ring size

  • Measure at the end of the day: Your fingers can swell throughout the day, so it’s best to measure your ring size in the evening when your fingers are at their largest.
  • Consider your knuckles: If your knuckles are larger than the base of your finger, measure both the base and the knuckle, and choose a size in between.
  • Comfort fit: Ensure the ring fits comfortably; it should be snug enough not to fall off but loose enough to slide over your knuckle without too much difficulty.

Understanding ring size conversions

Ring sizes can vary by country, so it’s essential to know the conversion between different sizing systems. Here’s a quick reference for the most common ring size conversions:

Finger Size (mm) Inside Diameter (mm) EU Size UK Size USA Size
38 12.0 38 A 0.5
39 12.4 39 B 1
40 12.8 40 C 1.5
42 13.2 41/42 D 2
43 13.6 43 E 2.5
44 14.0 44 F 3
45 14.4 45 G 3.5
47 14.8 46/47 H 4
48 15.2 48 I 4.5
49 15.6 49 J 5
50 16.0 50 K 5.5
51 16.4 51 L 6
52 16.8 52 M 6.5
54 17.2 53/54 N 7
55 17.6 55 O 7.5
56 18.0 56 P 8
58 18.4 57/58 Q 8.5
59 18.8 59 R 9
60 19.2 60 S 9.5
61 19.6 61 T 10
63 20.0 62/63 U 10.5
64 20.4 64 V 11
65 20.8 65 W 11.5
67 21.2 66/67 X 12
68 21.6 68 Y 12.5
69 22.0 69 Z 13

Finding the Perfect Fit

When you know your ring size, shopping for rings becomes much easier and more enjoyable. Always consider the style and width of the ring as wider bands may require a slightly larger size for a comfortable fit.

By following these simple steps and tips, you can confidently find your ring size and ensure a perfect fit for any ring you choose. Happy ring shopping!