Laboratory tool
Reconstitution Calculator
Enter your vial amount, the bacteriostatic water you added, and your target dose to read the exact volume and syringe units to draw.
Common Questions
There is no single correct amount. More water lowers the concentration and spreads the dose across more units, which helps with very small doses. Less water concentrates it into fewer units. Common volumes are 1 to 3ml. Enter your amount above and the calculator returns the exact draw.
No. The vial holds the same amount of peptide regardless of water added. Water changes only the volume per dose and the units you draw, not the total compound.
One milligram equals 1000 micrograms. Vials are labelled in mg and doses are often given in mcg. Use the toggle to match your protocol and the calculator converts automatically.
Concentration is the peptide amount divided by the water added, shown in mg per ml. It sets how much compound sits in each unit you draw, and it updates live as you change the water volume.
The calculator warns you. Either select a larger syringe or add more bacteriostatic water to lower the concentration, which reduces the volume per dose.
Follow the storage guidance supplied with your order. Most reconstituted research peptides are kept refrigerated and away from light. This tool handles the math only, not storage protocol.
