The average fingernail is about half a millimeter thick.
Fingernail Thickness Explained
The part we call the fingernail is technically known as the "nail plate". This nail plate is primarily made of keratin, a hard protein. According to InformedHealth.org - NCBI Bookshelf, the nail plate is:
- Thickness: Approximately half a millimeter (0.5 mm) thick.
- Shape: Slightly curved.
- Composition: Mostly made of keratin.
This information offers a general guideline for typical fingernail thickness. Individual variations may exist.