Electroplating Thickness Calculator
Estimates how thick a plated layer will be.
Average thickness
— µm
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Mass deposited —
Charge passed — C
Current density — A/dm²
Reading this —
The formula
mass = (I × t × M ÷ (n × F)) × efficiency thickness = mass ÷ (density × area)
Faraday’s law gives the mass, and the metal’s density turns that into a layer over the surface.
What to watch out for
Efficiency varies by metal and bath, and is often lower in practice than you might expect, so a measured figure is better than a guess.
Frequently Asked Questions
How thick is copper at 2 A for an hour over 100 cm²?
About 25.1 µm, at 95% efficiency.
What does current density mean?
Current per unit of surface. It affects the quality of the finish as well as the speed of plating.