Hair Growth Calculator – How Long Does Hair Take to Grow?

Units

Hair Type

Your Measurements

Current Hair Length

Target Hair Length

⚠️ Please enter a valid target length greater than your current length.

— Months

— Weeks

— Growth Needed

— Per Year

Current 0%

Growth Milestones

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Eat Protein-Rich Foods Hair is mostly keratin. Eggs, fish, and lentils fuel faster growth.

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Biotin + Zinc Deficiencies in these two are the #1 cause of slow hair growth.

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Scalp Massage 3–5 min daily increases follicle blood flow by up to 25%.

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Trim Split Ends Prevents breakage — so length you grow actually stays.

Average speed 1.25 cm/month

Per year ~15 cm (6 in)

Active follicles ~100,000

Growth phase 2–7 years

Daily shedding 50–100 strands

Our complete guide covers nutrition, routines, and the science behind maximising your growth rate.

Hair GrowthCalculator