How Many Grafts? What a Graft Number Actually Buys

Written by the AfroHairClinicTurkey editorial team, drawing on the clinical experience of our medical team · Last updated September 3, 2026 · How we write and check this

On this page 6 sections
  1. How many grafts for the crown — and why it eats them
  2. The density half of the sum
  3. The number assumes the loss has stopped moving
  4. Before the arithmetic applies at all
  5. The number taken out and the number put back are not the same number
  6. What to ask when someone gives you a number

Every conversation arrives at the same question: how many grafts? Ask it online and you will get a number within seconds — from a clinic that has never seen your scalp, in a message that is really a quote. That number is not a measurement. It is a sales figure with a decimal point.

The question deserves a better answer than either a guess or a shrug. Here it is: a is not something you have. It is a multiplication — the area being covered, times the density the plan is aiming for. Both halves of that sum are things you can see and reason about. So instead of telling you a number, this page hands you the arithmetic.

That is a deliberate division of labour with the rest of the Lab. The donor module refuses to put a number on you, and it always will — that measurement belongs to someone with your scalp under magnification. This one puts a number on a shape, which is a different object entirely: it is the sum you can check a quote against.

Afro Hair Lab · module 8

What a Graft Number Actually Buys

Nobody can tell you your graft count from a screen, and this does not try. What it does is show you the sum behind the number: grafts = area × density. Draw a patch and watch the count appear — or press a graft number and watch the patch it covers.

The whorl at the back, where hair radiates outward from a centre.

Or start from a number:
0 cm²×30 / cm²=0grafts

Why the crown is the expensive one

Widen the patch and watch the count: area grows with the square of the width, so a crown twice as wide costs about four times the grafts — not twice. A hairline is a narrow strip, which is why it buys so much more visible change per graft. That is geometry, and you can watch it happen above rather than take our word for it.

What this number is not

  • It is not your graft count. It is the count for the shape you drew, at the density you chose. Your own number depends on how far your loss will still travel, what your donor can give without thinning, and why the hair went — none of which a drawing knows.
  • The density slider is a plan's choice, not a medical constant. We are not going to print a target density as though the literature settled it. Note also that the reference figures for "normal" hair density were gathered from mostly white populations [1] — and that study is about reading a biopsy, not about planning grafts, so it sets no target here either.
  • There is no donor total on this screen. We have no sourced figure for what a given head can spare, and drawing a comforting bar out of an invented one would be exactly the thing this site exists not to do. What is true and worth holding: the donor is finite and does not refill — the donor module shows that trade in full.

Before any of this arithmetic applies

All of the above assumes the scalp under the patch can hold a graft. In the crown that is a real question rather than a formality: central centrifugal cicatricial alopecia begins at the crown and spreads outward, and it scars. Grafts placed into actively scarring skin are not a coverage problem with a coverage answer.

So if the thinning you are measuring here started at the crown and moved out, the question in front of you is not how many grafts it would take. It is what is happening to that skin — and that is answered by a scalp biopsy, not by a diagram.

The model above is part of the Afro Hair Lab, and it keeps the Lab’s rule: it will do the arithmetic with you, and it will not put a number on your head.

How many grafts for the crown — and why it eats them

Move the slider above and the reason becomes obvious rather than theoretical. A patch twice as wide is not twice the work — it is roughly four times the work, because area grows with the square of the width. A round patch 5 cm across is about 20 cm²; at 10 cm across it is about 79 cm².

This is the whole reason a crown and a hairline are not comparable purchases. A hairline is a narrow strip — a few square centimetres framing the face, in the one place other people look first, which is its own decision with its own rules. A crown is a disc, and a disc is the most expensive shape on the head. Two people can each be quoted “2,500 grafts” and be buying completely different amounts of visible change.

It is also why the honest surgical conversation about a crown is usually a conversation about restraint. Filling a crown to the density of the hair around it can consume a donor supply that then is not available for the front — and the front is the part that reads as “having hair” in every photograph and every mirror.

So how many grafts does a crown take?

Honestly: nobody can tell you your number without looking at your scalp, and anyone who does is guessing in public. What can be answered exactly is the other direction — what a given number covers. If you have been quoted 2,000 grafts, or you are wondering what 1,000 grafts does for a crown, this is the arithmetic behind it.

What a graft number covers, if it is placed in one round patch. Ordinary geometry — area = grafts ÷ density, width = 2√(area÷π).
Graftsat 25 per cm²at 40 per cm²
areaacrossareaacross
50020 cm²5.0 cm13 cm²4.0 cm
1,00040 cm²7.1 cm25 cm²5.6 cm
1,50060 cm²8.7 cm38 cm²6.9 cm
2,00080 cm²10.1 cm50 cm²8.0 cm
2,500100 cm²11.3 cm63 cm²8.9 cm
3,500140 cm²13.4 cm88 cm²10.6 cm

For scale, a bank card is about 46 cm². None of these rows is a recommendation, and none of them is about your head — they are what the multiplication gives for a patch of that size.

Read the two halves of that table against each other and you have the single most useful thing on this page: 1,000 grafts is a patch about 7 cm across at one density and about 5.6 cm at another. Same number, same surgeon, very different amount of scalp. So when a quote arrives with a graft count and no density and no area, it has told you the price and not the plan.

Two things the table cannot know, and they are the two that matter most. Whether your crown is 7 cm across or 12 — that is a measurement, and it is taken on your head. And whether it will still be that size in five years, which is the next section.

The density half of the sum

Start with what is actually there. is not denser than other hair types; measured density is lower. Trichoscopy in 122 South Africans of African ancestry gave a mean of 139 hairs per cm², and a study of 2,249 adults across 24 ethnic groups found the same direction.[2,3] That matters here because the opposite is repeated so often — the claim that coiled hair comes three to a follicular unit and therefore gives more coverage per graft. It flatters a graft count, and the measurements do not support it.

The second slider is the one the industry quietly decides for you. Grafts per square centimetre is a planning choice, and moving it changes the total more than most people expect: the same patch at 20 grafts per cm² and at 45 grafts per cm² differs by more than double.

Two circles with the same number of dots. The left is wider and sparser — 2,000 grafts at 25 per square centimetre, about 80 square centimetres. The right is smaller and denser — 2,000 grafts at 40 per square centimetre, about 50 square centimetres.
The same 2,000 grafts at two densities. Same number, same surgeon, different area — with the arithmetic printed underneath so you can redo it.

We are not going to print a target density here as though the literature had settled it, because it has not, and because the right number for a scalp is a matter for someone examining that scalp. One thing is worth knowing when you read density figures anywhere, though: the reference data for “normal” hair density was gathered largely from white populations. A 1999 study of scalp biopsies found total hair density significantly lower in African American patients than in white patients [1] — and its own authors framed that as a warning about misreading biopsies, not as guidance for planning grafts. It should not be turned into a target density, here or anywhere.

You will also be told, on almost every site in this industry, that textured hair needs fewer grafts because each coiled strand covers more scalp. It is a pleasant thing to be told and it may well be true. We cannot publish it, because when we went looking for something that measured it, we found nothing — and a claim that happens to favour the person selling the surgery is exactly the kind we hold to the higher standard.

What we could not answer here

These are gaps in the published research, not gaps in our reading of it. Each one is either stated as unresolved by a paper we have read, or recorded in our register as something we looked for and could not find.

  • Whether curl really does let each follicle cover more scalp, which is the basis of the widely repeated claim that textured hair needs fewer grafts. Three searches returned nothing measuring it.No source we have read answers this, so we publish no figure for it.

If any of these has since been answered in the literature, tell us — we would rather update the page than defend it. Our verification record tracks what is still outstanding.

The number assumes the loss has stopped moving

Tick “show where the loss may still go” on the diagram and you can see the trap. Grafts fill the patch that exists on the day of surgery. If the thinning is still travelling outward, the transplanted disc stays exactly where it was placed while the hair around it keeps leaving — and a filled circle inside an expanding bald area is more conspicuous than the thinning was.

This is reasoning, not a prediction about you: nobody can tell you from a diagram how far your loss will go. It is the reason a serious plan asks about the direction of travel before it asks about the number, and the reason “let’s do the crown now and see” is a more expensive sentence than it sounds.

Before the arithmetic applies at all

Everything on this page assumes one thing that is not always true: that the skin under the patch can hold a graft.

In the crown, that assumption deserves a real check. Central centrifugal cicatricial alopecia is the most common form of among women of African ancestry.[4] It usually starts at the crown and spreads outwards — which is what “centrifugal” names — and because it is a scarring alopecia the follicle is lost rather than thinned. Thinning that started at the crown and moved out is exactly the pattern makes. Placing grafts into skin that is actively scarring is not a coverage question with a coverage answer, and the published experience of transplanting into CCCA is two cases — reported only where the disease was end-stage and a scalp biopsy showed no remaining inflammation.[5]

If that describes what you are looking at in the mirror, the useful next step is not a graft estimate. It is finding out what is happening to that skin — and that comes from a scalp biopsy, not a diagram and not a WhatsApp quote. The same applies if the thinning is at your edges rather than your crown, where traction alopecia is the more likely explanation and the first intervention is free.

The number taken out and the number put back are not the same number

Every figure above assumes that a graft removed from the donor arrives intact in the recipient area. Some do not. A punch that cuts across a follicle instead of around it destroys the graft — — and a graft transected on the way out is spent donor supply that grows nothing.

This is normal, within limits, and it is measurable. For context, a study of 42 patients undergoing conventional with a 1 mm punch found transection in 6.3-7.4% of grafts. Transection is not unique to textured hair; it is a feature of the technique.[6] In tightly curled hair the follicle sits curved beneath the skin,[7,8,9] so a straight punch has more follicle to cut across. In a case series of 18 patients with tightly curled hair, conventional rotary punches either failed outright or produced excessive transection in 8 of them, while a curved non-rotary punch kept transection below 5%.[10] In a retrospective series of 64 patients of African descent, the mean transection rate was 3-6%, and scalp thickness and firmness affected it more than hair curliness did.[11] Both of those studies are small, retrospective, and written by the surgeon who developed the device they test — the best evidence available, not settled evidence.

What this means for your arithmetic is simple. If a clinic quotes 4,000 grafts, ask whether that is the number they will extract or the number they will implant. At a 7 per cent transection rate those differ by roughly 280 grafts. At the rates reported when the punch does not suit the hair, they can differ by far more — and the difference is subtracted from a that does not refill.

A clinic that has never measured its own transection rate cannot tell you which number it quoted. That is not a trick question; it is the difference between a surgical plan and a sales figure.

Why the arithmetic has a ceiling: a transplant moves a donor supply that is finite and does not refill. — nothing loads from YouTube until you press play. Watch it on YouTube instead.

What to ask when someone gives you a number

  • What area is that number covering, in square centimetres? If the answer is vague, the number is decorative.
  • At what density? A total without a density is not a plan.
  • What does that leave in the donor for later? The supply is finite and does not refill — the donor module shows exactly what that trade looks like.
  • What do you think caused this loss, and how did you decide? The answer changes whether surgery helps at all.
  • What happens to this result if the loss keeps moving? Anyone planning properly will already have thought about it.
  • Is that number what you will extract, or what you will implant? They are different numbers, and the gap is transected grafts you do not get back.
  • What transection rate do you measure, and on hair like mine? A clinic that does not measure it cannot answer — and that answer tells you something too.

One more, once you have a number you believe: what does it cost, and what is inside that price? What actually moves the price of an Afro-textured transplant is a separate page, because the answer is longer than a figure. None of these questions require you to know anything technical. They require the person answering to have looked at your scalp — which is the only place a real number can come from.

Clinical references

  1. Sperling LC. Hair density in African Americans. Archives of dermatology. 1999;135(6):656-8. view source →
  2. Dlova NC, Enechukwu NA, Suleman MH, Maseko JZ, Rudnicka L. Baseline trichoscopic values for afro-textured hair in indigenous South Africans. International Journal of Dermatology. 2025. doi:10.1111/ijd.17633 view source →
  3. Loussouarn G, Lozano I, Panhard S, Collaudin C, El Rawadi C, Genain G. Diversity in human hair growth, diameter, colour and shape. European Journal of Dermatology. 2016. doi:10.1684/ejd.2015.2726 view source →
  4. Malki L, Sarig O, Romano MT, Méchin MC, Peled A, Pavlovsky M, et al. Variant PADI3 in Central Centrifugal Cicatricial Alopecia. The New England journal of medicine. 2019;380(9):833-841. view source →
  5. Callender VD, Lawson CN, Onwudiwe OC. Hair transplantation in the surgical treatment of central centrifugal cicatricial alopecia. Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.]. 2014;40(10):1125-31. view source →
  6. Park JH, You SH. Various Types of Minor Trauma to Hair Follicles During Follicular Unit Extraction for Hair Transplantation. Plastic and reconstructive surgery. Global open. 2017;5(3):e1260. view source →
  7. Thibaut S, Gaillard O, Bouhanna P, Cannell DW, Bernard BA. Human hair shape is programmed from the bulb. Br J Dermatol. 2005;152(4):632-8. view source →
  8. Thibaut S, Barbarat P, Leroy F, Bernard BA. Human hair keratin network and curvature. Int J Dermatol. 2007;46 Suppl 1:7-10. view source →
  9. Kajiura Y, Watanabe S, Itou T, et al. Structural analysis of human hair single fibres by scanning microbeam SAXS. J Struct Biol. 2006;155(3):438-44. view source →
  10. Umar S. Comparative Study of a Novel Tool for Follicular Unit Extraction for Individuals with Afro-textured Hair. Plastic and reconstructive surgery. Global open. 2016;4(9):e1069. view source →
  11. Umar S, Khanna R, Lohlun B, Maldonado JC, Zollinger M, Osei-Tutu A, et al. Follicular Unit Excision in Patients of African Descent: A Skin-Responsive Technique. Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.]. 2023;49(10):949-955. view source →

References are checked on the dates recorded in our evidence library. If a source has been superseded, tell us and we will update it.