You can find out your ring size by measuring the circumference of your finger at its thickest part. To get that number take a small strip of paper, wrap it around your knuckle and make a mark where it overlaps.

Measure the paper up to that mark to find the circumference of your ring. Once you have it, divide the number you got by 3.14 to find the diameter and convert it to a size using the chart below.

Many of our rings are U shaped (with a flat top), which makes them a bit more forgiving in the way they size. They are usually available in 3 sizes and each of them works for a range of US sizes.

S: 4.5 - 6

M: 6 - 9.5

L -9.5 - 11

If you are between two sizes, take into consideration the season (cold weather usually means skinnier fingers), your knuckle-to-finger ratio and preferred fit, as well as how often you plan on taking it on and off, etc. If still in doubt we recommend you choose the smaller one, as this U shape leaves a bit of extra room and loose rings tend to get misshapen easier.

For example, I measured my index finger and got a 61mm circumference, which divided by 3.14 gave me a diameter of 19.43mm which is the equivalent to a US size 9.5.

I wear a size M, which fits nice and snug on my finger, even though i could potentially wear a size L if I liked my ring to feel more loose.

If you are ordering a ring and are still not completely sure of your size, please email us at hi@pia.club and we will be more than happy to help you find the perfect fit.

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