You can also use it to find the area of a circle: A × R × 14 615.752 cm. Your fingers may swell if you are warm, in regards to how much fluid you have in your body, if you are working with your hands and so on. Substitute this value to the formula for circumference: C 2 × × R 2 × × 14 87.9646 cm. If you are between 2 sizes we strongly recommend you to choose the larger size because the size of your fingers will often change throughout the day. So if your ring size for example is 17.75mm/ 0.70 inches and we only have 18mm/0.71 inches, the difference between these 2 sizes are minimal, the larger ring will still fit.

Please note that our rings are measured in millimetres (mm) and that is small. measure to the nearest 1/8 of an inch Once you have found the circumference, use the chart below to find your pipe or tube size. Choose the ring size closest to your measurements, see the circumference inch (in) measurements in the chart below. Measure the string/dental floss length from the end to your marking using an inch ruler, this is your finger circumference.Ĥ. Use a pen to mark a point on the string where the string end meet the string.ģ. Wrap a piece of string or dental floss around the thickest part (often the knuckle) on your chosen finger, do not pull tight.Ģ. Choose the ring size closest to your measurement, see inner diameter inch (in) measurements in the chart below.ġ. Use the ring size chart above to translate the measurements into a ring size. The number closest to the pen mark is the circumference of the ring in millimeters. Measure the inner ring diameter using an inch ruler.ģ. For players 8 and under, size 5 basketballs are the ideal size for play. Place the measured string on the ruler with the area marked on your right. Select a ring that you are happy with, use it as a reference, lay it flat.Ģ.

5 inch circumference actual size