Ring Size Guide – Find Your Perfect Fit.

Your ring should feel comfortable for everyday wear. We recommend selecting a ring size that can be easily put on and taken off your finger.

Note: If your ideal fit falls between two sizes, we recommend choosing the larger one.

BROSISCUS rings follow the United States numerical scale but you can use the International Conversion Chart below if you know your ring size in UK standards.

On this page you will find the details and downloads you need for three ways to find your perfect ring size.

Measure your ring with a piece of string;
Measure the diameter of a ring you own;
Measure the circumference of a ring you own against the BROSISCUS ring size chart.

Let’s get started.

Measure your finger

You will need a piece of string to wrap around your finger, then follow these steps.

String

Wrap the string around the base of the finger, below the knuckle.

Mark It

Mark the string where it ends with a pen.

Measure it

The number closest to the pen mark is the circumference of the ring.

Ta Da

The number closest to the pen mark is the circumference of the ring.

Your finger size will expand and change throughout the day depending on the elements such as weather. It is a good idea to measure in the morning and again in the afternoon to determine the best size. The fit should be comfortable but not be able to slide off the finger too easily. Check your length against this chart.

International Conversion Chart – Ring Size Guide

Inner Diameter	Inner CIRCUM	USA	UK & Aus
15.6 mm	49.3 mm	5	J
16.5 mm	51.9 mm	6	L
17.3 mm	54.5 mm	7	N
18.2 mm	57 mm	8	P
18.9 mm	59.5 mm	9	R
19.8 mm	62.1 mm	10	T
20.7 mm	64.6 mm	11	V

Measure a ring you own – diameter

You can also use the International Conversion Chart by measuring the diameter of your ring using a ruler. Once you have the inner diameter of the ring in millimetres, match the closest number on the International Conversion Chart above to find your ring size.

1. Print
Print out the BROSISCUS Ring Size Guide Chart.

2. Place your ring
Find the corresponding circle that matches the inside CIRCUMFRENCE of your ring.

3. Double Check
If possible check more than one ring against the chart.

View and Download our Ring Size Guide