Rings: Your Easy Guide to Ring Sizes

Getting the right ring size is essential for comfort and to ensure your new piece fits perfectly. This guide will walk you through simple methods to accurately measure your ring size at home using the UK's letter sizing system.

Plain rings of a variety fo sizes on ring display

Ring on Ring Mandrel

Understanding UK Ring Sizing

In the UK, ring sizes are denoted by letters, with each letter corresponding to a specific measurement in millimeters.

While ring styles can vary, these measurements provide a consistent baseline for sizing.

Easy ways to Measure your Ring Size at Home

You don't need special equipment to find your ring size. Here are two straightforward methods:

Method 1: The String or Paper Strip Method

This is a popular and easy DIY approach.

What you'll need:

• A piece of non-stretchy string, dental floss, or a thin strip of paper

• A ruler

• A pen or marker

  
  

How to do it:

1. Wrap it: Wrap the string or paper snugly around the base of the finger where you'll wear the ring. Make sure it's not too tight or too loose and can come over the knuckle.

2. Mark it: Use your pen to mark the point where the end of the string or paper overlaps.

3. Measure it: Lay the marked string or paper flat against a ruler and measure its length in millimeters (mm). This measurement is your finger's circumference.

4. Find your size: Refer the UK ring size chart below to convert your circumference measurement to the corresponding letter size (e.g., H, L, P, R)

Method 2: Measure an Existing Ring

If you have a ring that already fits the desired finger perfectly, this method is very simple.

Measurment of the Diameter of a ring

What you'll need:

• An existing ring that fits

• A ruler

How to do it:

1. Measure the diameter: Place the ring on a ruler and measure the inside diameter of the ring in millimeters. Be sure to measure the widest point from inner edge to inner edge.

2. Find your size: Consult the UK ring size chart below. The chart has columns for internal diameter measurements that you can match to find your letter size.

   
   

Top Tips for Accurate Sizing

• Temperature matters: Fingers can swell and shrink due to temperature changes. Measure your finger when it's at a normal body temperature, ideally at the end of the day when your fingers are typically at their largest.

• Consider your knuckles: If your knuckle is significantly larger than the base of your finger, measure both. Choose a size that can comfortably slide over your knuckle but isn't too loose once it's on the base of your finger.

• Multiple measurements: Measure a few times to ensure accuracy and take the average.

• Band width: A wider ring band (6mm or more) will generally feel tighter than a thin band of the same size. For wide rings, consider going up a quarter or half size (e.g., from L to L½).

Still Unsure?

If you're still uncertain about your size, consider visiting a me or another local jeweller. Many jewellers offer professional ring sizing services. If you are local to me, you can visit me at an event/market or my home studio, and I can accurately size any of your fingers.

Ring Size Chart

UK Ring Size	String Method  Circumference - mm	Existing Ring  Diameter - mm	US Ring Size	EU RIng Size
A	37.5	12.1	1/2	38
B	39	12.5	1	39
C	40.2	12.9	1 1/2	40.5
D	41.4	13.2	2	41
E	42.6	13.6	2 1/2	42.5
F	43.8	14	3	44
G	45	14.4	3 1/2	45
H	46.2	14.8	4	46.5
I	47.4	15.2	4 1/2	47.5
J	48.6	15.6	4 3/4	49
K	49.8	16	5 1/4	50
L	51	16.4	5 3/4	51.5
M	52.2	16.8	6 1/4	53
N	53.5	17.2	6 3/4	54
O	54.7	17.6	7	55
P	56	18	7 1/2	56.5
Q	57.3	18.4	8	57.5
R	58.5	18.8	8 1/2	59
S	59.9	19.2	9	60.5
T	61.4	19.5	9 3/4	61.5
U	62.4	19.9	10 1/4	62.5
V	63.7	20.3	10 3/4	63.5
W	64.3	20.7	11 1/4	65
X	66.1	21.1	11 3/4	66.5
Y	67.3	21.5	12	67.5
Z	68.5	21.9	12 1/2	69

With these simple steps, I hope you can confidently measure your ring size using the UK letter sizing system and find that perfect piece to adorn your finger. Happy ring shopping