Tools · Reconstitution
Reconstitution calculator
Substance per solvent = concentration. Pure math. Not a usage recommendation, no step-by-step instructions.
What does this calculator do?
Peptides usually ship as a dry powder in a vial. To handle them at all, the powder is dissolved in a liquid (solvent) — this is called reconstitution. This calculator answers a single, purely mathematical question: after dissolving, how much substance is in one millilitre of solution?
In 3 steps
- 1Enter how much substance (in mg) is in the vial — this number is printed on the label.
- 2Enter how much solvent (in mL) you add.
- 3The concentration in milligrams per millilitre (mg/mL) appears below.
Printed on the vial label
/
Liquid you add
Concentration
2.50
mg / mL
In words: 5 mg dissolved in 2 mL gives 2.50 mg per millilitre. So each millilitre of the finished solution contains 2.50 mg of substance.
Pure mathematics. This calculator only performs the substance-per-solvent conversion — like a calculator. It does not say how much to use and is not a usage or dosing recommendation.
Conversion table
Which volume corresponds to which amount of substance at this concentration — the plain inverse calculation. Illustrative, not an amount recommendation.
| Substance amount | corresponds to volume |
|---|---|
| 0.25 mg | 0.10 mL |
| 0.5 mg | 0.20 mL |
| 1 mg | 0.40 mL |
| 1.5 mg | 0.60 mL |
| 2 mg | 0.80 mL |
| 2.5 mg | 1.00 mL |
| 5 mg | 2.00 mL |