Research tools
Peptide reconstitution calculator
A free peptide calculator that works out the concentration of a reconstituted research peptide in seconds. Enter the amount of peptide in the vial and the volume of solvent you plan to add — it returns the concentration in mg/mL and µg/mL and, optionally, the U-100 syringe units for a given draw.
Concentration
This tool performs unit-conversion arithmetic on the values you enter (concentration = mass ÷ volume). It is a laboratory calculation aid for research use only and is not a dose recommendation or guidance for use in humans or animals. A U-100 syringe measures 100 units per millilitre (1 unit = 0.01 mL).
How to use it
Reconstitution is governed by a single relationship: concentration equals the mass of peptide divided by the volume of solvent. A 10 mg vial made up with 2 mL of bacteriostatic water gives a 5 mg/mL solution; the same vial in 1 mL gives 10 mg/mL. The calculator does this arithmetic for you and expresses the result in mg/mL, µg/mL and µg per U-100 syringe unit.
The optional “amount to draw” field converts a quantity you enter into the corresponding volume and syringe units. It is purely a unit conversion — you supply the number, and nothing here suggests what that number should be.
Common questions
Is this peptide calculator free?
Yes. The Sova peptide calculator is free to use with no sign-up. It runs entirely in your browser and performs reconstitution and unit-conversion arithmetic on the values you enter — nothing is stored or recommended.
How does the reconstitution calculator work?
It applies the arithmetic of concentration: the peptide mass in the vial divided by the volume of solvent added, giving the concentration in mg/mL and µg/mL. Enter an optional draw amount and it converts that into a volume and U-100 syringe units.
What is a U-100 syringe unit?
A U-100 insulin syringe measures 100 units per millilitre, so one unit equals 0.01 mL. The calculator uses this to convert a volume in millilitres into syringe units.
What solvent is used to reconstitute peptides?
Bacteriostatic water is the most common laboratory solvent because its preservative limits microbial growth in a vial accessed over several days. Sterile water is also used. See our reconstitution guide for the full procedure.
Does this calculator recommend a dose?
No. It performs unit-conversion maths on values you enter and makes no recommendation. All products and information are for in-vitro research use only, not for human or veterinary use.