Gold Plating Material Calculator
Estimate the pure gold in a uniform coating from its area and thickness. The result describes the deposited layer, with assumptions you can check.
Enter your values or load an example. Calculations stay in this browser.
Calculate coating mass from area and thickness
The calculator multiplies the coated area by layer thickness to get volume, then uses 19.3 g/cm³ for pure gold. Every input is converted to centimeters first so the units cancel correctly.
Measure all the surfaces that will be coated
Use the total area, including a back face or edges when they are part of the coating. A flat object's front area alone is not its total coated area. Complex shapes need measured surface area or a suitable geometry model.
Check microns, mils and millimeters
One micron is 0.001 millimeter. One mil is one thousandth of an inch, or 25.4 microns. Confusing these units can change the estimate substantially; review the converted thickness in the worked steps.
Understand what the estimate leaves out
The model assumes a uniform pure-gold coating. Alloy plating, porosity, variable thickness and process losses need additional information. This calculator does not specify chemicals, current, processing time or bath composition, and it does not estimate recoverable scrap gold.
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Frequently Asked Questions
What formula does the gold plating calculator use?
Coating mass equals total coated area times thickness times density. This tool converts area to cm² and thickness to cm, then uses 19.3 g/cm³ for pure gold.
How much gold covers 100 cm² at one micron?
An ideal pure-gold layer is 0.01 cm³ and approximately 0.193 g. This excludes losses and assumes uniform thickness.
Can I use this for gold-filled jewelry?
No. Gold-filled material is specified by a bonded layer and its mass fraction. Use the separate gold-filled calculator when that fraction is documented.
Does it estimate plating cost or recoverable gold?
No. It estimates material in the ideal deposited layer. Actual cost and recovery depend on the process, composition and losses.
Will it work for an unknown gold alloy?
No reliable pure-gold mass follows from an unknown alloy. The fixed density represents pure gold, not every gold-colored or alloy coating.
Continue in the app
Explore photo identification features in Gold Detector - Goldiva. The calculator above uses only the values you enter.
