Hair Growth Rate: How Long to Grow 3 Inches?

On average, hair grows about 1/2 inch per month. Therefore, it would take approximately 6 months for hair to grow 3 inches.

(3 inches / 0.5 inches/month = 6 months)

Keep in mind that this is just an average, and individual hair growth rates can vary based on genetics, diet, health, and other factors.