RECONSTITUTION PROTOCOL · CALC-01
Peptide Calculator
Enter your peptide mass, bacteriostatic water volume, and target measurement. The calculator returns solution concentration, draw volume, insulin-syringe units, and total measurements per vial — instantly.
HOW TO USE · 4 STEPS
Enter peptide mass
The amount in your vial (e.g. 10 mg).
Add BAC water
The volume you’ll reconstitute with (mL).
Set target dose
Your target per measurement (mcg or mg).
Read the result
Draw volume & syringe units — instantly.
Inputs
SYRINGE · U-100 · 1.0 mL
WORKED EXAMPLE
A 10 mg peptide vial reconstituted with 3 mL of bacteriostatic water yields a concentration of 3.33 mg/mL (3,333 mcg/mL). For a 250 mcg target measurement, the draw volume is 0.075 mL — equal to 7.5 units on a U-100 insulin syringe, giving 40 measurements per vial. Change any input above and every figure updates instantly.
For research purposes only. This calculator performs standard concentration arithmetic for laboratory reconstitution. It is not medical, dosing, or administration advice and is not intended for human or animal use. Living Water Labs supplies compounds strictly as research-only chemicals under applicable research-use guidelines. Always verify calculations independently before use in any research protocol.
HOW THE MATH WORKS
Concentration
Peptide mass ÷ water volume = mcg per mL of solution.
Draw volume
Target measurement ÷ concentration = mL to draw.
Syringe units
Draw volume × 100 = units on a U-100 insulin syringe.
UNDERSTANDING THE INPUTS
Bacteriostatic water (BAC water)
The solvent used to reconstitute lyophilised (freeze-dried) peptide powder. More water produces a lower concentration and a larger, easier-to-measure draw volume; less water produces a higher concentration and a smaller draw.
mcg vs mg
1 milligram (mg) = 1,000 micrograms (mcg). Vials are usually labelled in mg; target measurements are usually expressed in mcg. The calculator converts between them automatically.
Insulin syringe units (U-100)
Standard insulin syringes are U-100: 100 units = 1 mL. So a 0.075 mL draw = 7.5 units. Barrel size (0.3 / 0.5 / 1.0 mL) only sets how many units fit, not the units-per-mL.
Concentration
The amount of peptide per millilitre of solution (mg/mL or mcg/mL). It is fixed once you choose your peptide mass and water volume, and it determines every draw measurement thereafter.
PEPTIDE CALCULATOR — FAQ
What is a peptide reconstitution calculator?
A tool that converts a peptide vial size and a volume of bacteriostatic water into the solution concentration, the volume to draw for a given target measurement, the equivalent units on an insulin syringe, and the number of measurements per vial. It removes manual arithmetic and rounding errors in research preparation.
How do I calculate peptide concentration?
Divide the peptide mass by the volume of bacteriostatic water added. For example, 10 mg in 2 mL = 5 mg/mL (5,000 mcg/mL). The calculator does this automatically and shows both mg/mL and mcg/mL.
How much bacteriostatic water should I add to a peptide vial?
There is no single correct volume — it is a research-preparation choice. More water gives a lower concentration and a larger, easier-to-measure draw; less water gives a higher concentration and a smaller draw. Common volumes are 1–3 mL per vial. Enter your chosen volume and the calculator returns the resulting concentration.
How do I convert millilitres to insulin syringe units?
On a U-100 insulin syringe, 1 mL = 100 units, so multiply your draw volume in millilitres by 100. A 0.05 mL draw = 5 units. The calculator displays this and shows it on a syringe diagram.
What is the difference between mcg and mg?
1 milligram (mg) equals 1,000 micrograms (mcg). Peptide vials are typically labelled in mg while target measurements are stated in mcg, so conversion is needed — the calculator handles it for you.
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