Wondering how long it will take to grow your hair to your goal length? Enter your current length, your target, and how fast your hair grows — the calculator estimates your timeline and the month you will get there.

HairCurex

Hair Growth Calculator

How long until your hair reaches your goal length? Enter your numbers below — the estimate updates as you type.

Don’t know your current length? Estimate it from a photo ▾

Your photo stays on your device — it is never uploaded.

1. Choose a photo of your hair

2. Where do the ends of your hair reach?

3. Your height (in) — optional

Taller or shorter than average? We scale the estimate to your height.

Use this as my current length

This is a rough estimate based on body landmarks. Photos can’t measure hair exactly — angles and curls change how long hair looks. This gives you a close starting point; a tape measure is exact.

Measurement unit

Inches Centimetres

Current hair length (in)

Goal hair length (in)

Your hair growth rate

Average is about 0.5 in / 1.25 cm per month. Not sure? Leave it at average.

I plan regular trims (optional)

Trim amount (in)

Every how many months?

Trims don’t slow growth at the root, but they do remove length — so they reduce your net progress toward the goal.

Growth rates vary by person — genetics, health and hair care all play a part. This is an estimate, not a promise.

Grow it faster (and keep it)

Stop Hair Fall First

Growing longer hair starts with keeping the hair you have. Learn the common causes of hair fall and what actually helps.

Read the guide →

Best Hair Growth Oils

See which oils are worth using for hair fall and growth, how to apply them, and how often for real results.

Read the guide →

Hair Growth Vitamins

Which vitamins genuinely support hair growth, which are hype, and when a supplement is worth considering.

Read the guide →

Growing your hair is easier when shedding is under control — start with our guide on how to stop hair fall and the best hair growth oils.

Read the full breakdown of how long it takes to grow hair for the timelines behind this calculator.