Vial arithmetic
See the dose behind the units.
A transparent mg, concentration, volume, and U-100 reference calculation for checking the math without silently rounding it into an instruction.
Interactive referenceAll tools
Units are not the source of truth.The same unit count can represent a different mg amount at a different concentration. Duet shows the arithmetic without rounding it into a syringe instruction.
Calculated reference10 units
2.5 mg/mL · 0.1 mL
0.25 mg ÷ 2.5 mg/mL × 100Education and tracking only — not a dosing instruction.Why concentration matters
10 units5 mg vial + 2 mL · 0.25 mg dose
5 units10 mg vial + 2 mL · 0.25 mg dose