Determine ring size

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Below you will find a size chart to find the ring size. Ring sizes can be displayed differently per brand. In the table below you can see which ring size belongs to which diameter and circumference. We also give you a number of useful tips to determine the ring size.

Ring size EuropeDiameter (mm)Circumference (mm)Ring size (U.S.A.)
1616505,5
16,2516,2551
16,516,5526
1717536,5
17,2517,25547
17,517,5557,5
1818568
18,2518,2557
18,518,5588,5
1919599
19,2519,2560
19,519,5619,5
19,7519,756210
20206310,5
20,2520,2564
20,520,56511
21216611,5

Measure ring size

If you plan to buy a ring for yourself or someone else, it is important to know the right ring size. GASSAN has some useful tips for you to determine the ring size. A convenient way to calculate the circumference of your finger yourself is to wrap the rope around your finger and measure the number of millimeters with a measuring tape. The length of the ribbon is the circumference of your finger. Check the table below to see which ring size best fits your circumference.

Compare the ring size with an existing ring

Print this page and place the ring you wear frequently on the circles shown. Make sure that the inner circumference of the ring is flush with the outer edge of the circle. You are also welcome to visit one of the GASSAN stores to measure your ring size.

Here, you can print the page.