Free tool
Peptide dosage calculator
Pick your peptide, set how much bacteriostatic water you used, and enter your target dose. We'll give you the exact mark to draw to on a 100-unit insulin syringe.
Drawn with a 3 mL syringe
1 mg = 1000 mcg
Your result
5.0 units
on a 1 mL / 100-unit insulin syringe — that's 0.050 mL
Concentration
5.00 mg/mL
Per unit
50.0 mcg
Doses per vial
40.0
How the math works
Concentration = vial mg ÷ water mL. A 10 mg vial with 3 mL of bacteriostatic water is 3.33 mg/mL, so each insulin unit (0.01 mL) holds 33.3 mcg. Dividing your target dose by that number gives the unit mark.
This calculator is provided for laboratory research reference only. Not medical advice or a dosing recommendation.