Hello,

the formula for calculating the volume of a circle is r[2] * pi * h * s.g.

R= radius in cm

pi = 3.1415

h = hight in cm

s.g. = specific gravity for the metal

Example:

r = 0.15 cm

h = 7.4 cm

(0.15)" x 3.1415 = 0.0706 cm2

0.0706 x 7.4 = 0.5230 cm2

0.5230 x 10.3 = 5.387 gr for STERLING silver

Make sure that you have the exact dimensions because it makes a

different as Iâ€™ll show you.

r = 0.14 cm

h=7.4 cm

(0.14)" x 3.1415 x 7.4 = 0.4556 cm2

0.4556 x 10.3 = 4.693 gr for St silver

â€¦ and this is only 0.1 mm or 0.069 gram of st silver which is

not a big deal for silver but for other more expencive metals it

matters. This whould be 16.6 US$ without labor costs and alloy

metals. However, it depends on how you look at it and how you need to

do your calculations in order to run your business.

Have fun and enjoy

Pedro