+22 How Long Does Hair Grow In A Year Female References. This is a great way to get a lasting, rich color, especially if you’re trying to touch up roots or cover gray hairs. The three stages of hair growth are the anagen, catagen, and telogen phases.

Each strand of hair on the human body is at its own stage of development. Web healthy human hair grows at an average rate of 0.01 inch (0.35 millimeters) per day, which adds up to roughly 0.5 inch (13 mm) per month, or 6 inches (15 centimeters) per year, according to the. Web the scalp hair grows at about 1/3 to 1/2 inch per month on average, so about four to six inches per year for the hair on your head, says vasiloudes.