Hair Graft Calculator: Grafts by Norwood Stage
There's no official chart. Clinic figures run from 500 to 1,000 grafts at Norwood 2 to 5,000 or more at Norwood 7. Sources disagree, so we show ranges.
Estimate your grafts
| Source | Grafts |
|---|---|
| Bernstein Medical, first session | 1,000–1,600 |
| Bernstein Medical, total | 1,600–2,400 |
| Smile Hair Clinic | 1,000–2,000 |
| Elithair | 2,500–3,500 |
These are clinic figures, and they disagree. No medical society publishes a stage-to-graft chart, and your donor area sets the real limit.
Your result above shows what published sources say for your stage, and it's a range on purpose. No medical society publishes an official graft count by Norwood stage, and we did not find a peer-reviewed chart for all stages. The numbers come from clinics, plus one study of advanced hair loss, so use them to test a quote, not to set a target.
Published graft ranges
| Norwood | Bernstein Medical, first session | Bernstein Medical, total | Smile Hair Clinic | Elithair |
|---|---|---|---|---|
| 2 (2A for Bernstein) | 800 to 1,400 | 1,400 to 2,200 | 500 to 1,000 | 2,000 to 2,500 |
| 3 | 1,000 to 1,600 | 1,600 to 2,400 | 1,000 to 2,000 | 2,500 to 3,500 |
| 4 | 1,600 to 2,600 | 2,200 to 3,800 | 2,000 to 3,000 | Not listed |
| 5 | 2,000 to 2,800 | 2,600 to 4,500 | 3,000 to 4,000 | 4,000 to 5,500 (5 to 6) |
| 6 | 2,400 to 3,400 | 3,000 to 5,600 | 4,000 to 5,000 or more | 4,000 to 5,500 (5 to 6) |
| 7 | 2,500 to 3,600 | 3,200 to 6,400 | 5,000 to 6,000 or more | Not listed |
Bernstein Medical's ranges here run from its "without crown" low to its "with crown" high. All these clinics are commercial, and Smile Hair Clinic is an xcuro partner.
Why sources disagree
- One session or a lifetime. Bernstein Medical publishes both. Package clinics tend to quote one big session.
- Crown or not. The crown can add 1,000 grafts or more.
- Density goal. A 2024 paper's formula uses about 1,500 grafts per 30 square centimeters and calls that only guidance.
- Head size. The same paper modeled two men at the same stage needing 3,900 and 6,150 grafts.
- Sales. A package clinic has less reason to keep a count low. That's our view, not a finding.
The one peer-reviewed reference we found covers 820 men at Norwood 5 to 7: 3,000 to 3,500 grafts for the front, 4,500 to 5,000 for front and mid-scalp, and at least 6,000 for full coverage.
The limit that matters most
A 2021 guideline says the scalp can safely give about 4,000 to 6,500 grafts over a lifetime, and an average of 2,500 to 3,000 in one session. Those limits are rated low-level evidence, but they explain why the top of this chart isn't realistic for everyone. Hair loss also keeps going after surgery, so a plan must leave grafts in reserve.
Bernstein Medical adds a useful caution: because of differences in hair characteristics, density, scalp laxity, head size and shape, its own table serves only as a general guideline. Treat every row here the same way.
How to use your range
- Note whether a clinic's number is above or below these ranges. If it is above, ask why.
- Ask which zones it covers, at what density, and how many grafts would be left.
- Get a doctor's exam. Two clinics can grade you differently. The scale isn't very consistent between graders.
- Convert hairs to grafts: the average follicular unit holds about 2.4 hairs.
Then read how many grafts you need and the Norwood scale. Costs are on 3,000 grafts in Turkey and U.S. hair transplant costs.
Hair Transplant: the U.S. price
Typical U.S. price: $6,000 - $15,000. Prices abroad and the source.
How xcuro works
- Free for you
You don't pay xcuro anything. If you go ahead with treatment at an xcuro partner clinic, that clinic pays us a referral fee.
- Rankings aren't for sale
Clinics can't pay to be listed, to appear higher or to change their reviews.
- Ratings you can check
Clinic ratings come from Google and Trustpilot, and each one links to its source.
- Prices with sources
Every U.S. price we compare against names its source. Your own quote comes from the clinic in writing.
Frequently asked questions
How accurate is a hair graft calculator?
Only roughly. It can't measure your scalp, donor density or hair thickness. Treat it as a starting range, then see a doctor.
Do women use the Norwood scale?
No. Women's loss is usually diffuse and uses other scales. See our guide to hair transplants for women.
Why don't you use the ISHRS numbers?
We could not find a stage-by-stage graft chart from the ISHRS.
Can I trust a graft estimate from photos?
As a first guess. Bernstein Medical and others say totals vary with hair, density, scalp laxity and head size, which a photo can't fully show.
Sources
- Hair Transplant Graft Numbers (clinic table) — Bernstein Medical (New York clinic)
- How Many Grafts Do I Need For My Hair Transplant — Smile Hair Clinic (clinic website)
- Hair transplant cost 2026: all-inclusive prices — Elithair (clinic website)
- The PRECISE scale for hair loss area — Aesthetic Plastic Surgery, 2024
- Hair transplant in 820 men with advanced hair loss — Journal of Cutaneous and Aesthetic Surgery, 2019
- Hair Transplant Practice Guidelines — Journal of Cutaneous and Aesthetic Surgery, 2021
- Androgenetic Alopecia — International Society of Hair Restoration Surgery
- Reliability of hair loss classification systems among doctors (Journal of Dermatology) — Journal of Dermatology, 2013
- Glossary of Hair Restoration Terms — International Society of Hair Restoration Surgery