Price per ml and margin calculator for HOF
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Charging per ml makes the quote transparent and follows the real cost of the product. The hard part is reaching the right number: the price has to cover the syringe, the other procedure costs, taxes, fees and still leave the margin you want. This calculator works the math from the bottom up, using the same logic as the guide to pricing by ml.
The values shown when you open the page are a hypothetical example, unrelated to market prices. Use the cost from your invoice and your own numbers. Nothing you type leaves your device.
What does each field mean?
| Field | What to enter |
|---|---|
| Syringe cost | What you pay per unit, including shipping. |
| ml per syringe | The volume of the presentation you use. |
| Other costs per procedure | Supplies, disposables, anesthetic, chair time (hourly cost × duration) and a reserve for follow-ups and complications. |
| Average ml per procedure | How many ml, on average, one of your procedures takes. Used to spread the other costs per ml. |
| Taxes and fees on the price | The percentage for your tax regime plus the average card fee. |
| Desired margin | The profit you want on the final price. |
For the chair-hour cost, the evaluation consultation cost calculator shows the value of your clinical hour.
What is the formula?
- Cost per ml = syringe cost ÷ ml per syringe + other costs ÷ average ml per procedure.
- Minimum price per ml = cost per ml ÷ (1 minus taxes minus margin).
- Profit per ml = price per ml × margin.
- Average procedure = price per ml × average ml.
If taxes and margin add up to 100% or more, no price is possible, and the calculator warns you.
Worked hypothetical example
Hypothetical example: a 1 ml syringe at R$ 700.00, R$ 200.00 in other costs per procedure, 2 ml per procedure on average, 12% taxes and fees and a 30% margin.
| Result | Calculation | Value |
|---|---|---|
| Cost per ml | 700 ÷ 1 + 200 ÷ 2 | R$ 800.00 |
| Minimum price per ml | 800 ÷ (1 minus 0.12 minus 0.30) | R$ 1,379.31 |
| Profit per ml | 1,379.31 × 30% | R$ 413.79 |
| Average procedure | 1,379.31 × 2 | R$ 2,758.62 |
Notice that adding 42% to the cost would give R$ 1,136.00, and the real margin would end up well below the 30% you intended. It is the most common mistake when pricing from cost.
What if the patient uses less than a full syringe?
The product in an opened syringe does not go back to stock. If the plan uses 0.6 ml from a 1 ml syringe, the product cost is that of the whole syringe. Many professionals solve this with a minimum value per opened syringe. The detailed math on yield is in the syringe yield calculator, in this section.
What are the limits of the calculation?
- It spreads the other costs over the average ml. In procedures with few ml, the fixed cost of the appointment weighs more per ml; consider a minimum value per procedure.
- It does not apply to botulinum toxin, which is usually charged per area or per unit. The cost logic is the same, swapping ml for units.
- The result is a floor. Above it, the price depends on positioning, experience and how you present the plan, the subject of how to increase plan acceptance.
- Card installments change the fee. See the installments and fees calculator.
- To check whether the price supports the overhead, use the break-even calculator.
Frequently asked questions
How do you calculate how much to charge per ml of hyaluronic acid?
Add the product cost per ml to the other procedure costs divided by the average ml applied. Then divide by 1 minus the sum of the percentages for taxes, fees and desired margin.
Why isn't it enough to multiply the syringe cost?
Because the procedure has other costs (supplies, chair time, follow-up) and because tax and margin apply to the final price. Multiplying the syringe cost ignores both.
Does the calculator tell me the market price?
No. It starts from your costs and your margin. The final price also depends on your positioning, your region and what your audience expects.