Selecting the i don t know option will allow you to select a ring size later.
Ring size 20mm diameter uk.
Find the diameter on our ring size conversion chart to get the approximate ring size.
Ring sizing tips tricks.
Useful reading before determining ring size.
It also shows conversions between the numerical usa asia and alphabetical australia uk ring size measuring systems.
Match the measurement to the conversion chart below to get the actual ring size.
Convert between all ring size systems.
The same chart covers ring sizes for both women and men as they both use the same systems of.
It shows ring sizes in both mm and inches plus internal diameter and external diameter.
Grab a ruler and measure the diameter of the ring its widest part in mm.
1 source for determining your finger and ring size in all of the world s international ring sizing standards.
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.
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.
Most of our range is available in sizes h through to v although some rings.
Click here to download our practical ring size guide.
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.
A may already know your ring size.
We recommend buying a full size larger than your normal ring size.
As is standard across most jewellers we specify ring size with an alphabetical letter.
Below is our full ring size chart.
Determine us ring size.
Uk us au china japan south america.
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 ring size is an increase of 0 032 inch 0 8128 mm in diameter or roughly 1 10 inch in inside circumference.
International ring size conversion chart.
All in one ring conversion chart.
Select i don t know.
In ireland the united kingdom and australia ring sizes are specified using an alphabetical scale with half sizes.
If the size is wrong simply send in your ring within 90 days of your purchase and we will resize.
See also our other ring sizing resources.
B can pop into a local jewellers and have your finger or the ring measured.
Take your best guess.
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.
Use the ring conversion chart below to convert between us and uk ring sizes.
