Example calculation
A 250 mcg target dose from a 2,500 mcg/mL vial is 0.1 mL. On a U-100 syringe, that equals 10 units.
What this calculator solves
Dose-volume math starts after concentration is known. The target dose is divided by concentration to return the amount of liquid to draw.
This is useful when a vial label, pharmacy instruction, or previous reconstitution calculation already gives you concentration.
- Dose volume = target dose / concentration
- U-100 units = dose volume in mL x 100
- Recalculate if concentration or syringe type changes
When to use the reconstitution calculator instead
If you do not yet know concentration, start with the peptide reconstitution calculator. It uses vial amount and water volume to calculate concentration before solving the dose volume.
Sources used
Frequently asked questions
What is the difference between dose and concentration?+
Dose is the target amount of peptide. Concentration is how much peptide is present in each mL of liquid.
Can I use this for BPC-157 or TB-500?+
Yes, if you know the concentration and target dose. Dedicated peptide pages keep peptide-specific examples and related guidance together.
Does this calculator choose a dose for me?+
No. It converts values you enter into volume and syringe units. It does not recommend a dose.