Reconstitution Calculator
Calculate stock volume and diluent required to reconstitute a solution to a target concentration.
Calculation Parameters
Adjust the values below.
Calculated Result
Expert Tip
Ensure units are correctly formatted (e.g. Kelvin for gas temperatures and liters for volumes) to get chemically accurate outputs.
How this Calculator Works
This calculator allows you to solve Reconstitution problems dynamically. Adjust the input parameters using the sliders or selection menu below:
- Stock Concentration (mg/mL) (Range: 1 to 1000, Default: 100)
- Target Concentration (mg/mL) (Range: 0.1 to 500.0, Default: 20.0)
- Target Volume (mL) (Range: 1 to 5000, Default: 500)
The results are computed instantly and updated in the results panel on the right.
Formula & Methodology
Diluent Volume = Target Vol - Stock Vol
Where:
- Stock Concentration: Parameter value.
- Target Concentration: Parameter value.
- Target Volume: Parameter value.
Step-by-Step Calculation Example
To calculate Reconstitution manually, follow these steps:
- Identify the input parameters. For example:
- Stock Concentration (mg/mL) = 100
- Target Concentration (mg/mL) = 20.0
- Target Volume (mL) = 500
- Apply the formula:
Stock Volume = (Target Conc * Target Vol) / Stock Conc
Diluent Volume = Target Vol - Stock Vol - Verify the calculated value which is updated instantly in the results panel on the right.
Frequently Asked Questions
What is powder reconstitution? ▼
Reconstitution is the process of adding a liquid diluent to a dry powder to achieve a specified liquid concentration.
How do you calculate diluent volume required? ▼
Diluent Volume = (Powder Mass / Target Concentration) - Powder Displacement Volume.
Why is exact diluent volume critical in pharmacology? ▼
Inaccurate diluent volumes alter final concentration, leading to incorrect medication dosing.