Welcome to the no.
Ring size 20mm diameter uk.
An increase of a full ring size is an increase of 0 032 inch 0 8128 mm in diameter or roughly 1 10 inch in inside circumference.
In united kingdom australia new zealand south africa and ireland the ring sizes are specified using an alphabetical letters for full and half ring sizes.
In india japan and china ring sizes are specified using a.
C can lay a ruler on a flat surface and place the ring over to measure the internal diameter in millimetres.
How to determine your ring size size f 14 1 mm size g 14 5 mm size h 14 9 mm size f 14 3 mm size g 14 7 mm size h 15 1 mm size l 16 3 mm size n 17 1 mm size m 16 7 mm size j 15 7 mm size j 15 5 mm size i 15 3 mm size k 15 9 mm size k 16 1 mm size l 16 5 mm size m 16 9 mm size p 17 9 mm size r 18 8 mm size o 17 5 mm size q 18 5.
In ireland the united kingdom and australia ring sizes are specified using an alphabetical scale with half sizes.
Download our ring size pdf.
Use the ring conversion chart below to convert between us and uk ring sizes.
It shows ring sizes in both mm and inches plus internal diameter and external diameter.
All in one ring conversion chart.
Select i don t know.
The information presented here has been compiled from many sources in various countries to help you determine your local ring size compared to those from other countries.
An increase of a full size is an increase of 0 032 inch 0 8128 mm in diameter or roughly 1 10 inch more precisely 0 1005 in or 2 55 mm in inside circumference.
If you re buying a gift the best way but not always the easiest way is to borrow his or her ring from the correct finger and use the ring sizer guide on the left to determine its size.
Take your best guess and don t sweat it.
Uk us au china japan south america.
Grab a ruler and measure the diameter of the ring its widest part in mm.
Useful reading before determining ring size.
A may already know your ring size.
The same chart covers ring sizes for both women and men as they both use the same systems of.
Ring sizing tips tricks.
Selecting the i don t know option will allow you to select a ring size later.
B can pop into a local jewellers and have your finger or the ring measured.
1 source for determining your finger and ring size in all of the world s international ring sizing standards.
Find the diameter on our ring size conversion chart to get the approximate ring size.
Take your best guess.
We recommend buying a full size larger than your normal ring size.
If the size is wrong simply send in your ring within 90 days of your purchase and we will resize.
Below is our full ring size chart.
Match the measurement to the conversion chart below to get the actual ring size.
Determine us ring size.
See also our other ring sizing resources.
Click here to download our practical ring size guide.
Most of our range is available in sizes h through to v although some rings.
Convert between all ring size systems.