Compare the measurement to a ring size chart to find your closest size. You can also do the same with paper, cutting a strip no wider then 1.5cm and measuring the size of the loop it makes around ...

Take note of the measurement in millimeters, then compare this number to a size chart from Best Brilliance to confirm your ring size. The width of the band plays a role in how snug or loose a ring ...

The above table should be used as a guide, and we don’t recommend using the dimension chart to pick an Oura Ring size. If you don’t have time to wait for a sizing kit, measure the internal dia ...