Ring Size Guide

Finding your perfect ring size is essential for comfort and security. At HKS Jewellery, we want to ensure your personalised piece fits beautifully. Follow our guide to determine your ideal ring size from the comfort of your own home.

UK Ring Size Chart

UK Size Circumference (mm) Diameter (mm)
H 48.7 15.5
I 49.3 15.7
J 50.0 15.9
K 50.6 16.1
L 51.2 16.3
M 51.9 16.5
N 52.5 16.7
O 53.1 16.9
P 53.8 17.1
Q 54.4 17.3
R 55.1 17.5
S 55.7 17.7
T 56.3 17.9
U 57.0 18.1
V 57.6 18.3
W 58.3 18.5

Most women's rings fall between sizes L-P, while men's typically range from R-V.

How to Measure Your Ring Size at Home


Method 1: Using an Existing Ring (Most Accurate)

  1. Find a ring that fits well on the same finger you plan to wear your new ring
  2. Measure the internal diameter using a ruler (place the ruler across the center of the ring's opening)
  3. Compare your measurement to our diameter column in the size chart above
  4. Choose the closest size - if you're between sizes, opt for the larger one


Method 2: String or Paper Method

What you'll need:

  • A piece of string, dental floss, or thin strip of paper
  • A ruler or measuring tape
  • A pen


Steps:

  1. Wrap the string around the base of your finger (not over the knuckle)
  2. Mark the point where the string overlaps with a pen
  3. Measure the string from the end to the mark with a ruler
  4. Find your size by comparing the measurement to the circumference column in our chart
  5. Round up if you're between sizes


Method 3: Professional Sizing

For the most accurate measurement, pop into your local jeweller who can professionally size your finger using ring sizers. Many offer this service free of charge.


Important Tips for Accurate Sizing


Best Time to Measure

  • Late afternoon or evening when fingers are at their largest
  • Avoid measuring when you're cold, as fingers shrink
  • Room temperature is ideal for consistent results


Finger Considerations

  • Knuckle size matters - ensure the ring can slide over your knuckle comfortably
  • Consider the width - wider bands (4mm+) typically need a half size larger
  • Dominant hand fingers are often slightly larger than the non-dominant hand


Seasonal Changes

  • Fingers can be smaller in winter and larger in summer
  • Weight fluctuations can affect ring size
  • Pregnancy and medication may cause finger swelling


Ring Width Guidelines

The width of your ring affects the fit:

  • Narrow bands (2-3mm): Order your exact measured size
  • Medium bands (4-6mm): Consider going up half a size
  • Wide bands (7mm+): May need a full size larger


International Size Conversion

If you know your ring size in other systems:

UK Size US Size EU Size (mm)
L 6 51.2
M 6.5 51.9
N 7 52.5
O 7.5 53.1
P 8 53.8
Q 8.5 54.4
R 9 55.1


Contact Our Experts

Need help finding your size?

  • Email: support@hksjewellery.com
  • Phone: +44 7540 064069
  • Address: 4, Castle Road, Southall, Middlesex UB2 4QE, UK


At HKS Jewellery, every piece is crafted with precision and care. Getting the right size ensures your personalised jewellery will be treasured for years to come. When in doubt, our friendly team is always here to help you find the perfect fit.