Based On Current Ring

01 Choose a ring that fits the finger
02 Place the ring on a flat surface and measure the inner diameter
03 If the measurement falls between 2 sizes, choose the larger size

Paper Strip Method

01 Cut a strip of paper and wrap around finger or knuckle (if your knuckle are much larger than the base of your finger)
02 Measure from start to end point as the ring's inner circumference
03 Or use a measuring tape to measure around finger