Don't know your ring size? No problem.Just click to download our one page ring sizer and follow the instructions to determine your size. Selecting Option 2 (use your existing ring) will provide the most accurate method. If you do not have access to a printer, or do not have your own ring for comparison, then please select Option 3 (use string). Once you have your measurement, just compare it to the chart to determine your size. If you need assistance, please call our customer service department at 800.509.4990 and we will be happy to help.