Precious metal conversion chart for casting in DWT:

To convert WAX to metals,
multiply weight of WAX:
By 23.00 for Platinum
By 13.25 for 14K Yellow
By 15.00 for 14K Green
By 16.25 for 18K Yellow
By 11.60 for Silver
To convert 14K Yellow Gold to other metals,
multiply weight of 14K Yellow Gold:
By .88 for 10K Yellow
By 1.09 for 14K Green
By .97 for 14K White
By 1.19 for 18K Yellow
By 1.64 for Platinum
By .90 for Silver
By .65 for Brass
To convert Silver to other metals,
multiply weight of Silver:
By 1.10 for 10K Gold
By 1.25 for 14K Yellow
By 1.40 for 14K Green
By 1.50 for 18K Yellow
By 2.05 for Platinum
By .81 for Brass
To convert 18K Yellow Gold to other metals,
multiply weight of 18K Yellow Gold:
By .74 for 10K Yellow
By .83 for 14K Yellow
By .82 for 14K White
By .92 for 14K Green
By .94 for 18K White
By 1.38 for Platinum
By .67 for Silver
By .54 for Brass
To convert 10K Gold to other metals,
multiply weight of 10K Gold:
By .95 for 10K White
By 1.13 for 14K Yellow
By 1.35 for 18K Yellow
By 1.86 for Platinum
By .90 for Silver
By .73 for Brass
To convert Platinum to other metals,
multiply weight of Platinum:
By .54 for 10K Yellow
By .61 for 14K Yellow
By .72 for 18K Yellow
By .49 for Silver
By .39 for Brass

All of this information is based upon approximations, type of mold and type of wax may alter these estimates.