The calculation workspace
Peptide Cost Calculator
Find out what a peptide really costs per dose, per week, and per year, or what a whole cycle will take.
Enter the vial price, how much peptide the vial holds, your dose, and how often you take it. The calculator returns cost per milligram, cost per dose both before and after unusable leftover, and the ongoing weekly, monthly, and annual cost. Switch to Full Cycle to plan a set number of weeks across one or more peptides, including titration steps, and get the injections, total peptide, vials, and cost for the whole cycle.
1. Calculate Cost
2. Why Cost Per Dose Is Not Just Price Divided By Milligrams
Cost per milligram is the number most people compare, and on its own it is misleading. It assumes every milligram in the vial becomes a dose, which is only true when your dose divides evenly into the vial size.
A 10 mg vial with a 2.5 mg dose gives four clean doses and no remainder. The same 10 mg vial with a 3 mg dose gives three doses and leaves 1 mg stranded, because the leftover is not enough to draw a fourth. You paid for that milligram and cannot dose it, so your true cost per dose is a third higher than cost per milligram suggests.
This is why the calculator reports both figures. The gap between them is what vial sizing is costing you, and it is often the difference between two suppliers that look identical on price per milligram.
3. Example
A 10 mg vial costs 150, shipped in an order of two vials with 20 shipping. The effective price per vial is 160, or 16 per mg.
At a 2.5 mg weekly dose, the peptide in each dose costs 40, and the vial yields exactly four usable doses with nothing left over, so the real cost per dose is also 40. That works out to roughly 174 per month and 2,087 per year.
Raise the dose to 3 mg and the vial now yields only three usable doses with 1 mg stranded. The peptide cost is 48 per dose, but the real cost is 53.33 per dose once the unusable remainder is accounted for.
For a full cycle, take a 12-week plan with one injection per week that starts at 2.5 mg for 4 weeks, steps to 5 mg for 4 weeks, then holds at 7.5 mg. That is 12 injections using 60 mg in total. With 10 mg vials at 150, the cycle needs 6 vials and costs 900.
4. Important Limits
- This is an arithmetic tool. It does not assess product quality, purity, testing, sourcing, or legitimacy.
- A lower cost per milligram is not automatically a better deal if the vial size does not fit your dose.
- The calculator assumes the full labeled amount is present and recoverable, which real vials do not always deliver.
- Currency is a display label only. No exchange rates or taxes are applied.
- This calculator does not determine what dose you should take or how often.
6. Cost Calculator FAQ
How is cost per dose calculated?
Cost per dose is the price of the vial divided by the number of doses it contains. The number of doses is the total peptide amount in the vial divided by your dose. For example, a 10 mg vial at 100 per vial costs 10 per mg, so a 2.5 mg dose costs 25 and the vial holds four doses.
Why are there two different cost-per-dose figures?
The first figure divides the vial price by the exact amount of peptide you use, which is the cost of the peptide itself. The second divides the vial price by the number of whole doses you can actually draw. When your dose does not divide evenly into the vial, the leftover cannot be used as a full dose, so the real cost per dose is higher. The gap between the two figures is the cost of that waste.
How does dosing frequency change the total cost?
Frequency does not change what a single dose costs, but it sets how quickly you consume vials. Halving the interval between doses doubles the number of doses per year and therefore doubles the annual cost. The calculator converts your interval into weekly, monthly, and annual figures using 30.44 days per month and 365.25 days per year.
Does this calculator include shipping or other fees?
It can. The optional order fields let you enter how many vials come in an order and any additional cost such as shipping, consultation, or supplies. The calculator spreads that additional cost evenly across the vials in the order to give an effective per-vial price before working out cost per dose.
How does the full cycle mode work?
Enter the cycle length, then for each peptide the amount per vial, the price, how often you inject, and either a fixed dose or titration steps. The calculator counts the injections that fall inside the cycle, adds up the peptide each one uses, rounds up to whole vials, and multiplies by the vial price. Titration steps run in order and the last step continues until the cycle ends. Add more peptides to get combined vial and cost totals.
Does a cheaper cost per milligram mean a better deal?
Not on its own. Cost per milligram ignores whether the vial size fits your dose, so a cheaper vial that leaves a large unusable remainder can cost more per usable dose than a more expensive vial that divides evenly. It also says nothing about product quality, testing, sourcing, or legitimacy, which a calculator cannot assess.