Peptide Tools · Research Calculator
Peptide Dosage Calculator
Reconstitution (BAC water) volumes, syringe draw amounts, doses per vial, and cost per dose — instantly.
Quick Presets
Vial & Protocol
Total peptide in vial
Bacteriostatic water added
mg per injection
$ — for cost-per-dose
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Draw (mL)
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Doses / Vial
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Days Supply
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Cost / Dose
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Draw Volume
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units on syringe
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Summary
Concentration --
Draw per dose --
Doses per vial --
Frequency --
Vial lasts --
Used: --
Unused: --
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Weekly Injection Schedule
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Quick Reference — Common Doses
Dose Draw (mL) Units Doses/Vial

📖 How to Use This Tool

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What is reconstitution?
Reconstitution is adding bacteriostatic water (BAC water) to a lyophilized (freeze-dried) peptide powder to create an injectable solution. The amount of water you add determines the concentration — how much peptide is in each unit of liquid you draw.
How much BAC water should I add?
There's no single correct amount — it depends on your desired concentration. 1mL = higher concentration, smaller injection volume. 2mL = standard, easy math. 3mL = lower concentration, easier to measure small doses.
How do I read the syringe?
The syringe shows exactly where to draw the plunger for your desired dose. 100u = 1mL total, 50u = 0.5mL, 30u = 0.3mL. Each unit mark = 0.01mL.
What's the difference between mg and mcg?
1 milligram (mg) = 1,000 micrograms (mcg). Most peptides are dosed in either mg (BPC-157, TB-500, NAD+) or mcg (smaller-dose peptides). The calculator handles the conversion automatically when you switch units.
Can I share my calculation?
Yes — click Copy Link to get a shareable URL that encodes your exact setup. Anyone opening the link sees your reconstitution parameters pre-filled.
⚠️ Research Use Only — Not Medical Advice For educational and research purposes only. Does not constitute medical advice, diagnosis, or treatment. Verify all calculations independently before use.
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