Reverse reconstitution calculator

Already mixed your vial and drew some units? Work backwards — enter the vial, the water you added, and the units on the syringe to see exactly what dose that is, in mcg and mg.

Working reconstitution backwards

Reconstitution usually goes dose → units. The reverse runs the other way: dose (mcg) = units ÷ 100 × concentration (mcg/mL), where concentration = vial mg × 1000 ÷ water mL.

Open the calculator (needs JavaScript). For educational and tracking purposes only — not medical advice.