Tools · Handling
Reconstitution calculator & converter.
Two bits of measurement math in one place: turn a vial + water + a dose into exact syringe units, and convert between mg, mcg, and ng. Pure arithmetic — it doesn't tell you what to take.
Enter your own numbers. These do the arithmetic — concentration, draw volume, syringe units, unit conversions — they do not tell you what dose to use. We publish no doses or protocols.
Reverse — how much water for a target concentration
Reverse — what a draw you already measured contains
Uses the concentration and syringe scale set above.
What common draws hold at this concentration
The math & the units
- Concentration = peptide (mg) ÷ water (mL). Adding more water makes a weaker solution and a larger, easier-to-measure draw.
- U-100 insulin syringes read 100 units = 1 mL — the standard. U-40 (40 units = 1 mL) is mostly veterinary; check what's printed on your syringe, because reading a dose on the wrong scale is a classic, dangerous mistake.
- mg ↔ mcg: 1 mg = 1000 mcg. This tool keeps purity, salt, and water out of it — concentration is reported as labeled peptide mass per mL.
- IU is not convertible here. Some compounds (e.g., HGH) are labeled in international units, which are defined per substance — there is no universal IU↔mg ratio. Work from the labeled mass.
- 1 gram (g) = 1,000 milligrams (mg)
- 1 milligram (mg) = 1,000 micrograms (mcg / µg)
- 1 microgram (mcg) = 1,000 nanograms (ng)
International units (IU) measure biological activity, not mass, and the IU-to-mg ratio is defined separately for each substance (HGH, insulin, and so on). There is no universal IU↔mg conversion — converting IU from a number you saw online is exactly how people get the math dangerously wrong. Work from the labeled mass, or your specific product's stated IU/mg.
Measurement math only — not a dose, not a protocol, not medical advice. For technique, sterility, and storage see the reconstitution & handling guide; to judge what's actually in a vial, the COA guide. Most peptides sold this way are not approved for human use.