Use a Ring Size Chart to Determine Your Ring Size
Please print so to scale. Hold your ring over the paper & the inner edge of your ring should line up with the ring on the paper.
Measure Ring Size With a Finger Size Strip
You can create your own ring sizer to determine what size rings you should be buying. Simply print and cut out the strip below. Insert the narrow end of the sizer through the "cut here" slot. Place the loop around your finger, with the numbers facing the outside, then pull until the fit is snug but comfortable.