Jeweller's Calculator

Calculate weights for given shape and dimensions

Ring Weight Calc Weights Convert Weight Sizing Weight Wire Metric conv Chain Prices Gem weight Beads About

Cross Section





Shape



Dimensions

max width: mm
thickness: mm
min width: mm
{{ area = (width + mwidth) * thick / 2}}
{{ area = width * thick}}
diameter: mm
min dia: mm
{{ area = (width + mwidth) * (width + mwidth) * 3.1417 / 16 }}
{{ area =width * width * 3.1417 / 4 }}
max width: mm
min width: mm
{{ area =(width + mwidth) * (width - mwidth) * 3.1417 / 32 }}
{{ area =width * width * 3.1417 / 8 }}
max width: mm
max thickness: mm
min width: mm
{{ area = ((width + mwidth) / 2) * thick * 2 / 3 }}
{{ area = width * thick * 2 / 3 }}

Fingersize


and a half

circumference {{(ringlength(selected,thick)).toFixed(2)}}
vol {{vol = area * ringlength(selected,thick,half)}}

Shape







Dimensions

existing weight

gm

existing metal

{{vol = currweight / currmetal}}

existing ring or bangle

weight
diameter

new

diameter

weight

{{(weightperlength * circumf(dia2)).toFixed(2) }}

original round wire

length
diameter

new

diameter

new length

{{checkNan(circarea(wdia) * wlength / circarea(wdia2))}}

length

inches: {{(inch * 25.4).toFixed(2) }} mm feet: {{(feet * 0.3048).toFixed(2)}} m miles: {{(mile * 1.60934).toFixed(2)}} km

volume




cup: {{(cup * 0.24365882375).toFixed(2) }} litres pint: {{(pint * 0.568261).toFixed(2)}} litres fluid oz {{(foz * 0.0284131).toFixed(2) }} litres gallon: {{(UKg * 4.54609).toFixed(2)}} litres
cup: {{(cup * 0.2365882375).toFixed(2) }} litres pint: {{(pint * 0.473176).toFixed(2)}} litres fluid oz {{(foz * 0.0295735 ).toFixed(2)}} litres gallon: {{(USg * 3.78541).toFixed(2)}} litres

weight

ozs: {{oz * 28.3495 }} gm lbs: {{lb * 0.453592}} kg UK tons: {{ton * 1016.05}} kg

temperature

fahrenheit {{((fahr - 32) * 5 / 9).toFixed(1) }} Celcius

existing

weight
length

new

length:

new weight

{{checkNan(cwght / clength * clength2)}}

prices /gm

{{metal.alloy}}

shape







{{sshape}}

stone size

Diameter
estimated depth: {{(ddia * 0.6).toFixed(1)}}
Length
Width
Depth

girdle







calculated weight

{{stone.gem}} {{checkNan(stoneweight(ddia, ddia, (ddia * 0.6), stone.sg, girdle)).toFixed(2)}}ct
{{stone.gem}} {{checkNan(stoneweight(ddia, dwidth, dhigh, stone.sg, girdle)).toFixed(2)}}ct
{{sshape}}

Bead Size

diameter: mm hole diameter: mm qty: {{vol = ((4 * 3.14157 * (width / 2) * (width/2) * (width/ 2) / 3) - ( circarea(hole) * width)) * qty }}