Peptide Calculator
Enter your vial size and target dose — get the exact water volume and syringe units. All calculations run in your browser.
Reverse Reconstitution Calculator
Enter your vial size and target dose — we'll tell you exactly how much water to add and where to draw.
Add BAC water
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Concentration
Doses per vial
0.5 mL Syringe (U-100)
5 units
(0.050 mL)
More Tools
Reconstitution Calculator
Already added water? Enter your concentration to calculate the exact draw volume.
Dosage Calculator
Weight-based dosing with research-backed dose ranges for 30+ peptides.
Half-Life Visualizer
Interactive concentration curves over time. Compare peptides side-by-side.
Syringe Unit Converter
Convert between IU, mL, and cc across U-40, U-100, and U-500 syringes.
PepStack is for research and educational purposes only. This is not medical advice. Always consult a qualified healthcare provider before using any peptides. Dosing data is sourced from published research and community protocols — verify with your provider.