Peptide Cost Calculator
Calculate your peptide cost per dose, per week, and per full cycle. Works for any peptide, any vial size, any protocol.
Common: 5 mg, 10 mg, 15 mg, 30 mg
e.g. 250 mcg for BPC-157, 500 mcg for CJC-1295
How to Budget for Peptides
Peptide costs vary significantly depending on the peptide itself, the vendor, vial size, and purity. A single vial of BPC-157 might cost $25 to $50 while a vial of semaglutide can cost $100 to $300 or more. The key to budgeting accurately is not looking at the vial price in isolation but calculating the true cost per dose based on your specific protocol. Researchers running multi-peptide stacks can calculate each compound separately and compare total cycle costs.
Reconstitution plays a major role in determining how many doses you get from a vial. The amount of bacteriostatic water you add does not change the total peptide content. A 10 mg vial reconstituted with 1 ml or 2 ml of water still contains 10 mg of peptide. What changes is the concentration per unit drawn, which affects how precisely you can measure each dose. More water means more volume per dose, which can be easier to measure on a standard insulin syringe.
Buying larger vials almost always reduces your cost per milligram. A 10 mg vial at $40 costs $4 per mg, while a 5 mg vial at $30 costs $6 per mg. If you are running a multi-week protocol, this difference compounds quickly. Factor in the full cycle cost, including the number of vials needed, ancillary supplies, and shipping, before committing to a vendor. If you are new to peptide dosing, our getting started guide covers the basics.
How to Use This Calculator
- 1.Enter your vial size and select the unit (mg or IU). This is the total peptide content printed on your vial label. Toggle between mg and IU depending on your peptide type.
- 2.Enter the price you paid (or plan to pay) for one vial. This should be the cost of the peptide vial only, not including supplies or shipping.
- 3.Enter your dose per injection. If your vial is in mg, enter your dose in mcg. If your vial is in IU, enter your dose in IU. Then select how many times per week you inject and your total cycle length in weeks.
- 4.Click "Calculate Cost" to see your cost per dose, cost per week, total cycle cost, number of vials needed, and total injections for the full protocol.
Cost Saving Tips
Frequently Asked Questions
How many doses can I get from one vial?
The number of doses per vial depends on two things: the total peptide content in the vial and your dose per injection. For example, a 10 mg vial of BPC-157 at 250 mcg per dose gives you 40 doses. A 5 mg vial of the same peptide at the same dose gives you only 20 doses. Use this calculator to see the exact number of doses for your specific vial size and protocol.
What is the cheapest way to start peptides?
The most cost-effective approach is to start with a single peptide, buy a larger vial size for a better price per milligram, and use a conservative dosing protocol. For example, a 10 mg vial is almost always cheaper per dose than a 5 mg vial from the same vendor. Also consider that reconstitution supplies like bacteriostatic water and insulin syringes are inexpensive and reusable across multiple vials.
What are the hidden costs of peptide protocols?
Beyond the peptide vials themselves, you will need bacteriostatic water (around $5 to $10 per bottle), insulin syringes ($10 to $15 for a box of 100), alcohol swabs, and potentially shipping costs. Some vendors charge for cold shipping to preserve peptide integrity. If you are running multiple peptides, these ancillary costs add up but are still a small fraction of the total peptide cost.
How do I compare peptide sources fairly?
Never compare vial prices directly. Instead, calculate the cost per milligram or cost per dose. A $40 vial with 10 mg of peptide costs $4 per mg, while a $30 vial with 5 mg costs $6 per mg. The cheaper vial is actually more expensive per dose. Always factor in purity (third-party testing), shipping costs, and whether the vendor provides certificates of analysis.
Does a higher price always mean better quality?
Not necessarily. Price reflects manufacturing costs, testing, branding, and margin. A higher-priced peptide may come with third-party purity testing, better customer support, and more reliable shipping, but the peptide molecule itself is the same. The best indicator of quality is a certificate of analysis (COA) from an independent lab showing purity above 98%. Some affordable vendors provide excellent purity, while some expensive ones do not test at all.
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