Human Body

Skin, Hair, and Nails

How fast do fingernails grow?

Healthy nails grow about 0.12 inch (3 milimeters) each month or 1.4 inches (3.5 centimeters) each year. It takes approximately three months for a whole fingernail to be replaced. The middle fingernail grows the fastest, because the longer the finger the faster its nail growth. The thumbnail grows the slowest.


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