Peptide dosage calculator
Scale a dose to bodyweight (mcg/kg) and instantly see the total dose, the volume to draw and the marks on an insulin syringe. Instant, free, research use only.
Total dose
Research onlyIllustrative for research purposes only — not medical advice. Peptyds products are supplied strictly for laboratory research and are not for human consumption.
From bodyweight to marks on the syringe
In research, dosing is often scaled to bodyweight in micrograms per kilogram (mcg/kg). This calculator does three steps in one: (1) total dose = weight × mcg/kg, (2) concentration = vial mg ÷ water mL, and (3) the volume to draw plus the marks on a U-100 insulin syringe. The optional height gives a BMI read-out so a research log can capture subject parameters in one place.
Not reconstituted yet? Start with the reconstitution calculator. Background is in how to reconstitute peptides and what are peptides.
Frequently asked questions
How do you calculate a peptide dose by bodyweight?+
Multiply the weight (in kg) by the dose per kilogram (mcg/kg). Example: 75 kg × 5 mcg/kg = 375 mcg total. The calculator then converts that into the volume to draw and the marks on a U-100 insulin syringe, based on your vial size and water volume.
What does mcg/kg mean?+
Micrograms per kilogram of bodyweight — a common way to scale a dose in research so it is proportional to the size of the subject.
How many units do I draw on an insulin syringe?+
A U-100 insulin syringe has 100 units per mL. The calculator divides the required dose by the concentration to find the volume, then multiplies by 100 for the marks — so you never convert by hand.
Is this dosage calculator medical advice?+
No. It is a calculation aid for research. Peptyds products are supplied strictly for laboratory research and are not for human consumption.