Educational reference only. Not medical advice. Research compounds are not for human or veterinary use.

Tool

Peptide reconstitution calculator

Enter the vial content, the bacteriostatic water you add and the amount you want to measure. The calculator shows the concentration, the volume in mL and the same volume in U-100 units.

Educational, research-use arithmetic only

This calculator converts units for laboratory and educational purposes. It does not suggest how much of anything to use, and the preset amounts are round numbers for the math, not recommendations. Research compounds are not for human or veterinary use. Check every value against your vial label and certificate of analysis.

Concentration

Volume

U-100 equivalent

Measures per vial

Read the brief

The formulas

Result	Formula	Example
Concentration	(vial mg × 1,000) ÷ water mL	10 mg × 1,000 ÷ 2 mL = 5,000 mcg/mL
Volume	amount mcg ÷ concentration	250 ÷ 5,000 = 0.05 mL
U-100 units	volume mL × 100	0.05 mL × 100 = 5 units
Measures per vial	(vial mg × 1,000) ÷ amount mcg, rounded down	10,000 ÷ 250 = 40

Step-by-step explanations, a unit reference and tips for choosing a water volume are in the reconstitution guide.