The calculator gives you two things: an estimate of how many grafts you'll likely need based on your hair pattern, and a realistic cost range across different countries. It's a planning tool — something to help you walk into a consultation with informed questions instead of a blank slate.
The tool uses computer vision to analyze your photos and combines that with an algorithm tuned on real clinical cases. It's built on the same principles surgeons use, but it can't replace seeing one in person — things like donor density and scalp condition need an actual exam.
The graft estimate uses four inputs: your Norwood stage, hair texture, hair caliber, and a pair of safety limits for each stage. Texture and caliber matter because curlier and thicker hair covers more visual area per graft, so fewer grafts can produce the same result. The safety limits make sure the algorithm doesn't return clinically unreasonable numbers in either direction.
The output is a range of around 400 to 500 grafts, not a single number. Two qualified surgeons looking at the same patient will routinely arrive at counts that differ by roughly 20 percent — pretending we can be more precise than that would be dishonest.
Our pricing database is built from publicly available information collected through automated data tools, with every entry reviewed and verified manually before it's added. We also contact clinics directly to confirm current pricing, and the database is updated on roughly a monthly basis.
The ranges shown reflect typical market pricing in each country, not promotional offers or extreme outliers. Countries with all-inclusive package pricing (Turkey, Mexico, Thailand) are handled differently from countries with per-graft pricing — this is reflected in the country-specific cost logic.
We started with the published clinical literature and then tuned the algorithm against real cases from our partner clinic's archive. That tuning produced two places where our outputs deliberately differ from textbook ranges, and we want to be upfront about both.
For Norwood 2 to 4, we recommend slightly higher graft counts than older guidelines. Today's patients expect denser, more natural-looking hairlines, and modern clinics align with that — they aim for densities above the older 35–45 follicular units per cm² standard. The result is that the actual graft count people need ends up higher than what older literature suggests. Giving users a number based on outdated density would set them up for disappointment in actual consultations.
For Norwood 7, we recommend less than some studies suggest — typically 6,000 to 6,500 grafts as a two-session total. Beyond this, donor capacity simply isn't there in most NW7 patients, even with beard hair added. When clinics promise NW7 patients 8,000+ grafts, that number is either anatomically unrealistic or marketing-inflated. Our output reflects what's actually achievable.
We checked the algorithm against 300+ retrospective cases from our partner clinic where both the surgeon's recommended graft count and the post-op outcome were known. The estimates matched the surgeon's plan in roughly 80% of cases. Where they diverged, the differences were small and explainable.
One known limitation: our visual analysis tool tends to underestimate Norwood 6 and 7 cases by about one grade. Users with advanced hair loss should have these results confirmed by more than one qualified surgeon before making decisions.
Caveats: this is one clinic's data and the review was retrospective. We grounded the algorithm in peer-reviewed literature, but our internal benchmark itself hasn't been independently audited by a third-party clinical board. We mention these limits because trust depends on knowing them.
The algorithm's baseline assumptions came from peer-reviewed work in hair restoration. The main sources:
Some things require an in-person exam: donor density needs trichoscopy, scalp laxity needs manual assessment, and how your hair loss might progress in the future is something a surgeon evaluates with you. Currency conversions are approximate.
The output for most stages reflects total grafts that may be planned across one or two sessions depending on density goals and donor capacity. For Norwood 7 specifically, two sessions are essentially required because of anatomical donor limits.