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Hair Transplant Graft Count Calculator

Work out hair transplant graft count instantly with clear inputs, formula shown and shareable results.

About Hair Transplant Graft Count Calculator

Multiplies the recipient area by the target graft density to give the graft count, then converts to hairs and typical session numbers.

Formula

Graft count

Grafts = recipient area (cm2) x target density (grafts/cm2); hairs = grafts x hairs per graft

Worked example

With the default values below, Hair Transplant Graft Count Calculator returns Grafts required of 2,100. Change any input above and every figure here is recalculated in your browser.

Inputs used

Recipient areaaccepts 5–300 cm2
60 cm2
Target graft densityaccepts 15–60 grafts/cm2
35 grafts/cm2
Hairs per graftaccepts 1–4
2.2

Results

Grafts required
2,100
Hairs transplanted
4,620
Sessions at 2,500 grafts each
0.84

Step by step

  1. 1Values used
  2. 2Graft count
  3. 3Grafts required= 2,100
  4. 4Hairs transplanted= 4,620
  5. 5Sessions at 2,500 grafts each= 0.84

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

What density looks natural?

30 to 40 grafts/cm2 usually gives a natural appearance; native density is around 80 to 100 follicular units/cm2.

Is donor supply the limit?

Yes. Lifetime donor capacity is finite, typically 5,000 to 8,000 grafts, so planning must reserve for future loss.

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Hair Transplant Graft Count Calculator | Calcrivo