What is the thickness of 100 mills?

Answer 1

If you mean on gold bars on eBay and the internet, 100 mills means "very very thin plating".

No one is quite sure what mills refers to there, but some suspect it means 1/10,000 of an inch thick.

These bars are worth very little, and the only reason you should consider getting them is as props for a movie or fakes to mislead a thief. Don't pay more than a couple dollars for them, as they are basically decorative.

In U.S. measurement a mill refers to one onethousanth of an inch (.001)

100 mills would be one tenth of an inch (.01). In metric it means something else

which can be confusing.

Correction, my mistake: one tenth of an inch is 0.1, one hundredth is .01

Answer 2

The thickness of 100 mills can vary depending on the material being measured. However, in general, 100 mills typically refers to a thickness of 0.1 inches or 2.54 millimeters.