How fast do fingernails grow in a week?

Thus, in humans, the nail of the index finger grows faster than that of the little finger; and fingernails grow up to four times faster than toenails. In humans, nails grow at an average rate of 3 mm (0.12 in) a month. Fingernails require three to six months to regrow completely, and toenails require 12 to 18 months. read more

The simple answer is that fingernails grow about one-tenth of an inch (3 millimeters) a month. If you lose a fingernail, it will take four to six months to regrow completely. Toenails take a year to a year and a half to grow from cuticle to tip [source: Robb-Nicholson]. read more

There is one interesting exception to that though – the fingernails of pregnant women. Due to the increasing levels of growth hormones circulating in the body, the faster rate of metabolism, and the general confusion of the body during pregnancy, it has been seen that pregnant women’s fingernails do grow faster than average. read more

Letting your nails soak in water for too long — whether you’re doing the dishes or spending a lot of time in the swimming pool — can result in weak nails that have a tendency to split when they grow a little bit of length. read more