Calculate the mass balance for a proposed yellow-gold batch from target karat and explicit alloy percentages. This avoids treating “yellow gold” as one fixed universal recipe.
The calculator intentionally makes the alloy split editable because actual yellow-gold recipes can vary by product and manufacturing specification.
It does not claim that one copper-to-silver ratio is appropriate for every yellow-gold product. It only performs the weight calculation for the composition you specify.
Yes. Enter 18 as the target karat.
No. Colour depends on actual alloy chemistry and processing.