There are three simple ways to measure your ring size at home. Print an online size chart and compare it to a ring that fits you well. Or, wrap a piece of string around your finger, mark the proper size, and measure it against the ring sizer. Lastly, many shops offer a printable ring sizer that wraps around your finger and indicates the proper size. With any print-at-home ring sizer, be sure to check the recommended print scale to ensure you’ve printed it accurately.