How To Find Out My Ring Size At Home. Decide which finger the ring will be worn on and grab a length of string, a felt tip pen and a ruler. If you happen to have access to the internet the easiest way to find out a ring size is to take an already existing ring of your girlfriend.
If you do not have measuring tape, you can find her ring size at home using a piece or string or dental floss and either a ruler or a carpenter’s tape measure. Multiply the diameter in millimeters with pi 3.14 (diameter * 3.14 = circumference), or by using our. If you order a size up, you may find that your ring may seem to be the perfect size when you first start wearing it, only to become loose after a couple of days.
Take one of these measurement tools and wrap it around the base of your finger, marking where the string or floss first overlaps with a pen.
Find that number on the chart and it's a size 9.) Follow these steps to find your ring size: Just use a millimeter ruler to measure the strip of paper. Hash marks between the numbers represent half sizes.
