Draw 7.5 units, 0.075 millilitres, on the 1.0 mL syringe. Concentration 3.33 milligrams per millilitre.

RESEARCH LAB // INSTRUMENT-01

RECONSTITUTION CALCULATOR

DRAW TO

7.5
Units

0.25 mg per draw

SYRINGE · 1.0 mL

10090807060504030201007.5 U
mL
CONCENTRATION3.33 mg/mL3 333 mcg/mL
DRAW VOLUME0.075 mL
SYRINGE UNITS7.5 UON 1.0 mL BARREL
PER DRAW0.25 mg
DRAWS / VIAL40

10mg vial in 3 mL bacteriostatic water → 250mcg target = 7.5 units (0.075 mL) on the 1.0 mL syringe.

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 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.

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.

Explore our peptide research library or browse HPLC-verified research peptides with CoA on every batch, delivered across South Africa.