Enter your age, gender, current length and target — get a personalised month-by-month roadmap with science-backed milestones.
Select your gender and age group for a more accurate, science-backed estimate.
Our complete guide covers nutrition, hormones, age-specific routines, and proven strategies for both men and women.
Read the Full Guide →Our complete guide covers DHT nutrition, patchy beard fixes, and science-backed routines for every age group.
Read the Full Guide →Same base speed — very different biology underneath. Here's what actually changes.
DHT-dominant biology
Estrogen-dominant biology
Growth slows with age — but the difference is smaller than most people think.
No account. No guesswork. Just your numbers.
The calculator adjusts growth rates based on your biological profile — male, female, teen, adult, or senior.
Type your current hair or beard length and your target in cm, inches, or mm.
See exact months, weeks, a progress bar, and every named milestone between you and your goal.
Four factors account for 90% of the difference between fast and slow growers.
Your genes set the ceiling. DHT controls beard density and scalp hair loss. Lifestyle determines where you sit below that ceiling.
Protein, biotin, zinc, and iron are the four pillars. A deficiency in any one can reduce your growth rate by up to 40%.
Growth hormone releases during deep sleep. Under 6 hours per night measurably disrupts the anagen (active growth) phase.
Follicles need oxygen via blood flow. Scalp massage, minoxidil, and derma rolling all improve microcirculation to follicles.
Research-backed guides — no filler, no hype.
The exact foods your follicles need most — and the science behind why they work.
Read Article → MythsWe test the most common beard myths against real research.
Read Article → Hair FallProven methods to reduce shedding and strengthen roots naturally.
Read Article → DHTScience-backed foods and supplements to lower DHT without medication.
Read Article → BeardThe science behind the viral trend — and the correct way to use it.
Read Article → Full GuideOne comprehensive resource covering everything you need to grow faster.
Read Full Guide →Personalised for your age and gender. Free calculators with science-backed timelines. Zero account required.