Hair Growth Calculator

Estimate hair length over time.

Length gained 7.5

Length gained 2.953

Formula: length = months × growth rate

Step-by-step with your numbers:

1. Values used:

2. Months grown = 6 months

3. Growth rate = 1.25 cm/month

5. Length gained = Months grown x Growth rate = 6 x 1.25 = 7.5

6. Length gained = 2.953

Did we solve your problem today?

Hair grows about 1.25 cm (½ inch) per month on average.

The math behind it

growth = months × growth rate. Average is ~1.25 cm/month.

6 months → 7.5 cm.

Faster?

Growth rate varies with genetics, diet and age.