The width of a fingernail varies between individuals and even among different fingers on the same person, but as a general approximation, a fingernail is about 9 to 11 millimeters wide.
Here's a more detailed breakdown based on the provided reference, which refers to index and middle fingernail widths:
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Measurements: The reference gives different measurements for males and females, specifically for index and middle fingernails.
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Male Index Fingernail Width: Approximately 10.59 mm (with a standard deviation of 0.79 mm).
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Female Index Fingernail Width: Approximately 9.21 mm (with a standard deviation of 0.73 mm).
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Male Middle Fingernail Width: Approximately 11.29 mm (with a standard deviation of 0.97 mm).
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Female Middle Fingernail Width: Approximately 9.78 mm (with a standard deviation of 0.80 mm).
This shows that there's a slight difference based on gender, and the middle fingernail tends to be slightly wider than the index fingernail.
In Summary: Fingernail width is typically between 9 mm and 11 mm, with some variation depending on the finger and the person's gender.
