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Cheers to Forever Sale 20% Off All Diamond Engagement Rings

Ring Size Guide

Let's take the guesswork out of finding the perfect ring size. We've got expert tips and answers to help – including average sizes for men and women. Let's make sure your ring fits perfectly!

Ring Sizing Chart

Need to find your ring size? No problem! You can either measure a ring you already love (check the inside diameter in millimeters), or use a flexible measuring tape around your finger. Don't forget to measure the right finger, and for the best results, do it later in the day. Need more help? Grab a printable ring sizer online!

Ring Size (IRE / UK) Ring Size (US) Ring Size (EU) Inside Diameter (MM)
E 2 1/2 42 3/4 13.7
E 1/2 2 3/4 42 3/4 13.9
F 2 7/8 44 14.1
F 1/2 3 44 5/8 14.3
G 3 1/4 45 1/4 14.5
G 1/2 3 1/2 45 7/8 14.7
H 3 3/4 46 1/2 14.9
H 1/2 4 47 1/8 15.1
I 4 1/4 47 3/4 15.2
I 1/2 4 1/2 48 15.4
J 4 3/4 48 3/4 15.6
J 1/2 5 49 15.8
K 5 1/4 49 5/8 16
K 1/2 5 1/2 50 1/4 16.1
L 5 3/4 50 7/8 16.4
L 1/2 6 51 1/2 16.6
M 6 1/4 52 1/8 16.8
M 1/2 6 1/2 52 3/4 17
N 6 3/4 53 3/8 17.2
N 1/2 7 53 1/4 17.4
O 7 1/4 54 17.6
O 1/2 7 1/2 54 5/8 17.8
P 7 3/4 55 1/4 18
P 1/2 8 55 7/8 18.2
Q 8 1/4 56 1/2 18.4
Q 1/2 8 1/2 57 1/8 18.6
R 8 3/4 57 3/4 18.8
R 1/2 9 58 3/8 19
S 9 1/4 59 19.2
S 1/2 9 1/2 59 5/8 19.4
T 9 3/4 60 7/8 19.5
T 1/2 10 61 1/2 19.7
U 10 1/4 61 1/8 19.9

What is the average ring size for women?

The average engagement ring size in Ireland is M.
Likewise, the average wedding ring size for women is M.

What is the average ring size for men?

The average men’s ring size is T - a whole seven sizes bigger than women’s.

Quick tips for getting your ring size right

  • If possible, have your ring size measured by a reputable jeweller - they’ll likely have you try on a couple of sample sizes to see what works best, and will use a professional sizing stick. We offer this service free of charge, book an appointment to arrange your visit to our showroom

  • Your hands swell slightly when hot, and are smaller than usual when cold. If you are particularly hot or cold, get them to temperature buy running them under room temperature water

  • Make sure to determine whether the size is ‘leading edge’ or ‘centre’ - we tend to use the ‘centre’ measurement and craft our rings accordingly

  • Try not to worry about the ring size too much - we’re on hand to give you the best advice regarding your or your partner’s ring size right. We predict sizes for engagement rings all the time! And if we don’t get it spot on, we’ll resize your ring free of charge.

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