Serial Dilution Plan
Serial dilution plan from a stock strength to a target: the steps, each transfer and the strength after each.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Strength unit, the same for the stock and the target
- mg/mL
- Stock strength
- 100
- Target strength
- 0.03
- Volume wanted at the last step
- 10 mL
- Dilution factor per step
- 10
Result: 4 steps from 100 mg/mL to 0.03 mg/mL.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Strength unit, the same for the stock and the target
- Stock strength
- Target strength
- Volume wanted at the last step
- Dilution factor per step (give this or the smallest measurable volume, not both)
- Smallest volume that can be measured
- Volume of each earlier step (blank uses the last step's volume)
How this is calculated
Citation
Arithmetic identity (repeated dilution): each step divides the strength by its factor, and the step factors multiply to stock ÷ target. No source beyond the definition is needed.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.