BOTOX Cosmetic (onabotulinumtoxinA) is dosed in product-specific units, not millilitres. Its units cannot be compared with or converted to units of other botulinum toxin products.
This calculator uses exact doses from the current U.S. prescribing information for glabellar lines, lateral canthal lines, forehead lines treated with glabellar lines, and platysma bands. Other areas are shown separately as off-label, literature-based planning ranges. Enter a price per unit to estimate treatment cost.
Zdrovia: https://www.zdrovia.ca/resources/botox-unit-calculator/
Botox Unit Calculator
Botox Unit Estimator by Area
FDA-labeled BOTOX Cosmetic doses are shown exactly as prescribed; off-label areas are separated as published-practice estimates.
Enter the price charged per BOTOX Cosmetic unit to estimate treatment cost.
Dose reference by treatment area
| Area | Reference dose | Status |
|---|---|---|
| Glabella (11s) | 20u | FDA label |
| Forehead + glabella | 40u | FDA label |
| Crow's Feet | 24u | FDA label |
| Platysmal Bands | 26 / 31 / 36u | FDA label |
| Bunny Lines | 5–10u | Off-label |
| Brow Lift | 2–6u | Off-label |
| Lip Flip | 4–8u | Off-label |
| Chin (dimpling) | 4–10u | Off-label |
| Masseter (jaw slim) | 40–60u | Off-label |
FDA-label status and doses are from the official prescribing information, revised October 2024.
Estimated dosage
Select at least one treatment area to calculate units and cost.
These results are estimates based on published clinical data and are for informational purposes only. They do not constitute medical advice, a diagnosis, or a treatment recommendation. Consult a licensed aesthetic practitioner before beginning any treatment. Individual results vary.
Zdrovia records neurotoxin units by area, lot, and expiry as you chart, so vial reconciliation stops being a monthly spreadsheet. See injectable inventory →
Log these units against lot and expiry
Zdrovia records neurotoxin units by area, lot, and expiry as you chart, so vial reconciliation stops being a monthly spreadsheet.
FDA-approved versus off-label Botox areas
The current BOTOX Cosmetic label recommends 20 units for glabellar lines, 24 units for lateral canthal lines, and 40 units for forehead lines treated with glabellar lines (20 units in each area). Simultaneous treatment of all three upper-face indications totals 64 units.
The FDA label also includes moderate to severe platysma bands. The labeled dose is 26, 31, or 36 units according to whether one or two vertical bands are treated on each side. Bunny lines, brow lift, lip flip, chin dimpling, and masseter slimming remain off-label indications.
Individualisation and treatment cost
The FDA-labeled doses are fixed reference doses, not values to multiply automatically according to a muscle-strength category. A qualified injector still individualises treatment after evaluating anatomy, prior response, goals, contraindications, and the activity of adjacent muscles.
For off-label areas, the calculator displays ranges reported in expert consensus literature rather than describing them as FDA doses. Enter the clinic's price per BOTOX Cosmetic unit to see an estimated cost for the selected exact dose or range.
Recording the treatment? Printable Botox face chart →
Running this treatment in your clinic? Botox and neurotoxin treatment guide: records, dosing and aftercare →