Ring Sizer
An adjustable ring sizer that you loop around the finger to read your ring size. It shows European sizes, the inner circumference in millimetres, which is exactly how our rings are made. The surest way to get the size right before you order.
- Shows your size in European sizes, the same as our rings
- Reusable, so you can measure several fingers
- Sent within 1 to 2 business days
Choose options
How to use the ring sizer
1. Make a loop
Thread the end of the band through the slot so it forms a loop.
2. Tighten
Put the loop on the finger the ring is for and tighten until it sits comfortably but still slides over the knuckle.
3. Read your size
Read the number at the marking. That is your ring size, for example 53.5.
4. Choose your ring
Choose that size when you order. You can check it against our ring size chart.
Keep in mind
Time of day
Fingers are often slightly larger in the evening and when it is warm, and smaller when it is cold. Measure a few times and go by a normal day.
The knuckle
The ring should slide over the knuckle with a little resistance and not slip off on its own.
Wide rings
A wide ring sits tighter than a narrow one in the same size. If the ring is wider than about 6 mm, it can be worth going up half a size.
Frequently asked questions
European sizes, which is the inner circumference of the ring in millimetres. It is the same system our rings are made in, so you can order the number you read.
Choose the larger one. A ring that is slightly loose usually feels better than one that is too tight, especially on warm days.
Borrow a ring your partner already wears and measure it, as shown in our size guide. Or borrow an attrappring from us to propose with, and measure properly together afterwards.
We adjust the size free of charge. The exception is full eternity rings, where the stones go all the way round and the size cannot be changed afterwards.