Not sure what ring size to get? There are 3 different ways to find the best fit, with or without a ring:

If you do not have an existing ring:

We recommend these free apps (we’ve tried and tested) that let you measure the width of your finger to determine your size. Simply download the app, and follow the instructions:

iOS: Ring sizer

Android: Ring sizer

 

If you have an existing ring:

Using the same apps above, you can also measure your size by placing your ring on top of the screen and using the built-in measuring tool.

 

If you know your ring size, but need to convert it:

We use standard US sizing. If you already know your size, please use the ring size chart below to determine your size in US sizing.

Diameter (mm)	Circumference (mm)	US	UK	French/German	Italian
14.8	47.44	4	H½	47.5	7.5
15.6	49.95	5	J½	50	10
16.45	52.46	6	L½	52.5	12.5
17.3	54.98	7	N½	55	15
18.2	57.49	8	P½	57.25	17.25
19	60	9	R½	60	20
19.9	62.52	10	T½	62.5	22.5
20.7	65.03	11	V½	65	25

 

Useful tips:

• Measure your finger when they’re warm, as cold fingers will measure smaller.

• The average ring size for women is US 6-7.