Ring Size Chart

Remove the guesswork when purchasing a ring by finding your ring size in letters using our ring size chart below. To ensure that you get the correct ring size we have put together some helpful tips and advice.

Overview:

Ring Size Chart

AU Sizes	US Sizes	Europe Sizes	Finger Circumference In MM	Diameter Of Ring In MM
F	3	4.25	44.20	14.07
F 1/2	3 1/4	4.75	44.80	14.27
G	3 1/2	5.5	45.50	14.48
G 1/2	3 3/4	6	46.10	14.68
H	4	6.75	46.80	14.88
H 1/2	4 1/4	7.5	47.40	15.09
I	4 1/2	8	48.00	15.29
J	4 3/4	8.75	48.70	15.49
J 1/2	5	9.25	49.30	15.70
K	5 1/4	10	50.00	15.90
K 1/2	5 1/2	10.5	50.60	16.10
L	5 3/4	11.25	51.20	16.31
L 1/2	6	11.75	51.90	16.51
M	6 1/4	12.5	52.50	16.71
M 1/2	6 1/2	13.25	53.10	16.92
N	6 3/4	13.75	53.80	17.12
N 1/2	7	14.5	54.40	17.32
O	7 1/4	15	55.10	17.53
O 1/2	7 1/2	15.75	55.40	17.73

How To Measure Ring Size At Home

Ring Size Chart FAQs:

What is the average ring size for women?

The average ring size for women varies widely from person to person, however, typically most women fit somewhere in between three categories - small: I-M, medium: N-Q and large: R-U.

If you’re looking for the average ring size of a loved one, you can use our ‘What Is My Ring Size?’ tips to measure a ring and determine an average.

Are ring sizes universal?

Rings are sized on a universal scale, but different countries have different ring-size systems. For example in the UK and Australia, letters are used to determine ring size while in the USA, numbers are used.

When placing an order, keep in mind we use UK/ Australian letter sizing. Please refer to the chart above to determine and convert a ring size.

Can a ring be sized down?

Rings can be sized down. A maximum of 2 size differentials is recommended.

Can a ring be sized up?

It is important to note that each ring is different. If a ring is resized more than two sizes, either way, it can cause stress on the ring.

If you are concerned about resizing, please contact us.

How do you know what ring size your girlfriend is?

Finding out what ring size your girlfriend is requires a little bit of investigation. Starting with identifying the ring sizes of her existing rings is a great start. Even if they are for the wrong finger, this will give you a handy guide. You can also attempt to measure her finger or hazard a guess.