PEPTIDE CALCULATOR
How to use v2.0:
Understanding peptide dosing requires just a few key measurements. MG stands for milligrams (1 MG = 1,000 micrograms), which is the amount of peptide in the vial. ML stands for milliliters, which is the volume of bacteriostatic water you add. MCG stands for micrograms and represents the amount of peptide you want per dose. For example, if you have a 5MG vial and you add 2ML of water, your concentration becomes 2,500MCG per ML (or 25MCG per insulin unit, since 1ML = 100 IU on an insulin syringe).
Most research peptide vials are 3ML in size, meaning you can comfortably add 1–3ML of bacteriostatic water without overfilling. Using our calculator, you simply input the total MG of the peptide, how much water you added (in ML), and your target dose in MCG. It’ll tell you exactly how many Units (IU) to draw for that dose.
Here are common dosing ranges for 10 popular research peptides:
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BPC-157: 250–500MCG per dose, 1–2x daily
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TB-500 (Thymosin Beta-4): 2,000–5,000MCG, 1–2x weekly
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Ipamorelin: 100–300MCG, 1–3x daily
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CJC-1295 no DAC: 100–300MCG, 1–3x daily
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GHRP-6 / GHRP-2: 100–300MCG, 1–3x daily
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PT-141 (Bremelanotide): 500–2,000MCG, as needed
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Melanotan II: 250–1,000MCG, as needed
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DSIP (Delta Sleep): 100–500MCG, 1x daily at night
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Semaglutide / Tirzepatide - Starting Dose 250-500mcg, Titration 500-1000mcg
Just remember: the more water you add, the more dilute it becomes—making it easier to measure small doses. Always use sterile water and calculate precisely. This calculator does the math for you, and the syringe graphic shows exactly how far to pull the plunger.