Thursday, July 30, 2009

On average, how fast does the human hair grow per month?

I recently cut my hair and it was on its way to being 6 inches from months January '06 to September '06. I cut it toward the middle of September to 1in on the top and about 1/2 in on the sides. Will my hair be the same length by May '07? I miss it soo much...



On average, how fast does the human hair grow per month?

It depends. If you just got a really bad hair cut, then hair seems like it does not grow at all, while hair that you have to shave every day seems to grow like a weed!



Ignoring these perceptual differences, human hair seems to grow at a pretty consistent rate of about half a millimeter or so per day, or about half an inch every month (this study quotes a specific rate of 0.44 mm per day). It may grow faster or slower depending on your age, your genetics and your hormonal state (pregnancy seems to have an affect on hair), but half a millimeter per day is a good average.



What this means is that the maximum growth rate for hair is about 6 inches (15 cm) per year. If you have short hair and are thinking, "It sure would be nice if I had hair down to my waist," then you are going to have about a four-year wait!



On average, how fast does the human hair grow per month?

half-inch a month, give or take. you can do things like brushing it carefully and not breaking it off to keep it from being all ripped up and such.



On average, how fast does the human hair grow per month?

About 1/4 inch per month.



On average, how fast does the human hair grow per month?

It should grow about 1/2" per month.

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