Created By : Rina Nayak

Reviewed By : Phani Ponnapalli

Last Updated : May 16, 2023

Reconstitution Calculator helps to prepare a solution from a power. It gives the reconstitution concentration of the medication by taking the dose and dose volume details. The only thing you have to do is enter inputs, and tap on the calculate button.

Dose Volume
Reconstitution Concentration

What is Reconstitution?

Reconstitution is the process of adding a liquid diluent to a dry ingredient to create a specific concentration of liquid. In general, it is the ratio of mass and volume in mg/ml. Sometimes, reconstitution is reinstating an object to its real state.

The best example to define reconstitution is mixing water with a gelatin powder to make jello.

Reconstitution Formula

When doctors prescribe a drug, they just mention the concentration. Add a diluent to the drug to make it a medicine.

The formula to find dose volume is dose volume = dose / reconstitution concentration

Reconstitution concentration = dose / dose volume


dose is the weight of the powdered or crystalline

dose volume is the quantity of diluent you have to add to the drug

How to calculate Reconstitution Concentration?

  • Get the mass of the dry ingredient, and volume of the diluent.
  • Divide the mass by volume.
  • The result is the reconstitution concentration.

How to Find Reconstitution of Medicine?

The preparation of medicines from drugs is a mandatory process for nurses, healthcare practitioners, doctors, and caregivers.

They have to study the label of the medicine, which has the instructions like:
Contents of the vial

  • Mass of medicine in the vial
  • Reconstitution concentration
  • Desired volume of the diluent
  • Expiration date
  • Optimum storage temperature

Healthcare staff have to keep certain medications in dry form to increase their storage life.

FAQ's on Medication Reconstitution Calculator

1. How do you calculate reconstitution?

The simple step to calculate reconstitution concentration is to divide the mass by the volume of the solution.

2. Is reconstitution the same as dilution?

No, both are different. Reconstitution is the process of adding liquid diluent to a dry ingredient to make a solution. Where dilution is the process of adding more solvent to the highly concentrated solution to lower its concentration.

3. What is the life span of reconstituted preparations?

After the reconstitution process, the preparations should be stored in a refrigerator and used within 48 hours. If we keep preparations at room temperature, then use them within 24 hours.

4. How to reconstitute medication dosage?

The reconstitution of medicines doses should be accurate. The process involves a mass of dry ingredients, the volume of diluent, and reconstitution concentration.