Convert the size of the ring
The 123GOLD tips for you.
With our ring size converter, you can quickly and easily convert into international ring sizes. To do this, simply move the cursor to the desired size or enter the diameter. The corresponding sizes will be calculated automatically.
Push here to adjust the size of your ring.
| Inner diameter (mm) | Ring sizes in Switzerland | Ring size in US/Canada | Ring size in UK | Ring size in France | Ring size in Japan |
| Or enter the circumference of your finger here. |
Or enter the circumference of your finger here.
| Inner diameter (mm) | |
| Ring sizes in Switzerland | |
| Ring size in US/Canada | |
| Ring size in UK | |
| Ring size in France | |
| Ring size in Japan |
Did you find the right ring size? Then get inspired by our dream products! With us, you will not only find the perfect ring, but you will be able to configure it individually!
* Valid only for wedding ring orders placed on or after 10 March 2026 and minimum order value of 1,000 CHF. Not combinable with other promotions.
FOR A LIMITED TIME
Make an appointment and receive 100 CHF off your wedding rings.*
Simply enter the following code when making an appointment:
T100Copied!
MAKE AN APPOINTMENT*Only wedding ring starting 10/03/26 and a minimum order of 1,000 CHF. Cannot be combined with other discounts.