Hair transplant graft calculator
Choose the scalp areas you want to consider and adjust the area and added graft density. The calculator works from those settings. A surgeon still needs to examine your hair loss and donor area before recommending a graft count.
Looking at facial hair? Use the beard graft calculator.
Loading the interactive head…
Choose an area on the head or in the list.
Tap a shaded area or number. Drag to turn the head.
Green areas are selected
“Infinite” head scan: Lee Perry-Smith / Infinite Realities, CC BY 3.0. Adapted with selectable regions.
| Treatment area | Area · cm² | Grafts |
|---|
Illustrative graft estimate
Select an area to begin.
Approximate hairs:
A graft count and a hair count are different. This conversion uses the average you select. It cannot predict survival, growth or final density.
2,500 grafts — £3,499
3,000 grafts — £3,999
What the figure means
For each selected region, the calculator multiplies the area in square centimetres by the added graft density. For example, 20 cm² at 30–40 grafts per cm² gives 600–800 grafts. It adds the selected regions together and rounds to whole grafts.
You can select the hairline, frontal scalp, mid-scalp and crown separately, as well as each temple. Left and right mean the sides of the person shown, so they appear reversed when you face the head.
A graft is a small piece of transplanted tissue and can contain more than one hair. The hairs-per-graft setting is an arithmetic assumption. If your consultation provided a figure, use that.
What a consultation needs to establish
The calculator does not measure your head, account for existing hair or assess the donor area. A suitable plan also considers the cause and progression of hair loss, existing hair and its characteristics, scalp or skin condition and available donor hair.
The British Association of Hair Restoration Surgery’s guidance on surgical planning explains the doctor’s role in recommending the number of grafts and the treatment design. A higher calculator total does not establish that the grafts are available or that they should be used.
Surgery has risks, including bleeding, infection, scarring and a result that does not meet expectations. The NHS guide to hair transplants explains these limitations. Your surgeon should discuss the risks relevant to your proposed procedure.
Bring the estimate to your London consultation
You can copy your selections and discuss them with our team at a consultation. The calculator does not provide a price or treatment plan.
Your calculator entries stay in your browser. They are not sent to the clinic when you select an area or copy an estimate.