Ring Size Guide (Ireland): How to Measure Your Ring Size at Home

Find your perfect fit with our simple at-home methods, printable chart, and pro sizing tips. Most Magpie Gems rings are adjustable for flexible styling—wear them as a classic finger ring, a knuckle (midi) ring or even a toe ring.

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Method 1 — Measure an Existing Ring

  1. Choose a ring that fits the intended finger.
  2. Measure the inside diameter in millimetres (mm) across the centre.
  3. Use the chart below to match the diameter to a UK/IE letter size.

Tip: If you’re between sizes or your knuckle is prominent, size up.


Method 2 — Paper or String (Circumference)

  1. Cut a thin strip of paper (or use string). Wrap it around the base of the finger.
  2. Mark where it overlaps. Lay it flat and measure the length in mm—this is your finger circumference.
  3. Match your measurement to the chart.

Accuracy check: Measure 2–3 times and average the result.


Printable Ring Size Chart (UK/IE Letters)

Print this page at 100% scale (no “fit to page”). Use the 50 mm check line below to verify accuracy.

50 mm scale check
Common UK/IE ring sizes with inner diameter & circumference (approx.)
UK/IE Size Inner Diameter (mm) Inner Circumference (mm)
J 15.5 48.7
K 15.9 50.0
L 16.3 51.2
M 16.7 52.5
N 17.1 53.7
O 17.5 55.0
P 17.9 56.2
Q 18.3 57.5
R 18.7 58.7
S 19.1 60.0
T 19.5 61.3
U 19.9 62.5
V 20.3 63.8
W 20.7 65.0
X 21.1 66.3
Y 21.5 67.5
Z 21.9 68.8

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Sizing Tips for the Best Fit

  • Measure at the right time: Fingers are usually larger in the evening and in warm weather.
  • Mind the knuckle: If your knuckle is wider than the base of your finger, size up slightly.
  • Ring width matters: Wider bands feel tighter—consider going up half a size for chunky styles.
  • Comfort first: Rings should slide on firmly and come off without pain.
  • Style flexibility: Many Magpie Gems rings are adjustable—perfect for stacking, knuckle styling and gifting.


Related Size Guides

Necklace Size Guide · Anklet Size Guide · Bracelet Size Guide (Ireland)


Ring Size FAQ

What’s the standard ring size in Ireland?

In Ireland/UK we use letter sizes (J–Z). Many customers fall between L–R, but fingers and styles vary—please measure.

How accurate is the paper/string method?

It’s a good guide if you measure carefully. Take multiple measurements and use our chart. When in doubt, choose an adjustable ring.

Do adjustable rings make a good gift?

Yes—adjustable rings are brilliant for gifting and stacking, and can be worn as a finger, knuckle or toe ring.

Can you resize fixed-size rings?

Some designs can be adjusted slightly. Contact us and we’ll advise on your chosen piece.

 

 

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