๐ Household
Hair Growth Calculator
Scalp hair grows about half an inch, or 1.25 centimetres, a month โ roughly six inches a year. Growth slows slightly with age and varies between people, so treat the projection as an average rather than a promise.
How it works
Current hair length
Target hair length
Months to project
Growth rate
Monthly trim
Net growth per month
Projected length
Projected length
Months to reach your target
Frequently asked questions
How do I use the Hair Growth Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.