A comprehensive guide to accurately measuring your ring size at home. Key Features: Method: Step-by-step instructions using paper and a ruler. Charts: Includes a ring size chart for US sizes. Information Provided: Explains how to measure the inner diameter and circumference. Size Conversion: Offers conversions US size No. 5: Inner diameter about 15.9mm/perimeter about 49.95mm No. 6:Inner diameter about 16.5 mm/perimeter about52mm No. 7:Inner diameter about 17.3 mm/perimeter about54.5mm No. 8:Inner diameter about 18.2 mm/perimeter about57.2mm No. 9: Inner diameter about 19 mm/perimeter about59.8mm No. 10: Inner diameter about 19.9 mm/perimeter about 62mm No. 11:Inner diameter about 20.6 mm/perimeter about64.6mm No.12: Inner diameter about 21.4mm/perimeter about67.2mm The measurement method is not very accurate The above data are measured manually, there will be errors, for reference only Perfect for determining your ring size for a comfortable fit.