Reconstitution calculator

Know exactly what
you're drawing.

Q: How is the draw volume calculated?

Concentration is vial strength divided by water added (mg per mL). Draw volume is the target dose divided by that concentration, optionally converted to U-100 syringe units where 100 units equal 1 mL.

Q: What is bacteriostatic water?

Sterile water containing a small amount of benzyl alcohol to inhibit bacterial growth across multiple draws from the same reconstituted vial.

Enter a vial strength, the bacteriostatic water you're adding, and a target dose, this tool works out the resulting concentration and the exact syringe draw for your lab records.

Select a compound

Vial strengthmg per vial

Bacteriostatic water addedmL

Desired dose per draw

Research use only. This calculator is a reconstitution and documentation aid for laboratory protocols. Elevate Biolabs materials are not intended for human or veterinary use, consumption, or any in-vivo application.

Draw syringe to

–units

Enter values to calculate

0255075100 units · 1 mL

This draw exceeds a single 1 mL (U-100) syringe. Split it across multiple draws, or reconstitute with more water to lower the concentration.

–Concentration

–Total peptide in vial

–Doses available per vial

How it works

Four numbers, one clean draw

Pick your compound

Choose a listed compound to auto-fill its vial strength, or enter a custom mg amount for anything not in our catalog.

Add your water

Enter the bacteriostatic or sterile water volume you reconstituted with, this sets your solution's concentration.

Set your dose

Enter the target dose per draw in mcg or mg, whichever your protocol documentation uses.

Read your draw

The result panel shows concentration, exact draw volume, and the syringe mark, in units or mL.

Calculator FAQ

A few things worth knowing

What is bacteriostatic water, and why does the amount matter?

Bacteriostatic water is sterile water containing a small amount of benzyl alcohol to inhibit bacterial growth across multiple draws from the same vial. The volume you add directly sets the resulting concentration (mg of peptide per mL of solution), so recording it accurately is essential to a reproducible protocol.

How is the draw volume calculated?

Concentration is vial strength divided by water added (mg ÷ mL). The draw volume is your target dose divided by that concentration. For syringe-unit display, we convert mL to U-100 insulin-syringe units, where 100 units equal 1 mL, a standard reference among researchers reconstituting peptides.

My compound isn't in the dropdown, what do I do?

Choose “Custom / not listed” and enter the vial's labeled mg strength directly. The rest of the calculation works identically.

What if my draw exceeds 100 units (1 mL)?

A standard U-100 insulin syringe holds 1 mL. If your calculated draw is larger, the tool flags it, split the draw across two syringes, or reconstitute with additional water to lower the concentration and bring the draw volume back under 1 mL.

Is this calculator a substitute for my lab's protocol or SOP?

No. It's a documentation and cross-check aid for reconstitution math. Always follow your institution's standard operating procedures, and remember these materials are supplied strictly for laboratory research use.

Know exactly whatyou're drawing.

Peptide reconstitution calculator