Extra volume
Mistake: Entering 0.5 when you mean 50%.
Fix: Enter 50 for 50%; 0.5 represents 0.5%.
Calculators · Free
Laboratory dilution batch planner
Plan stock and diluent volumes for repeated laboratory preparations.
01Enter your values
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02Laboratory dilution batch planner
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How it works
Plan stock and diluent volumes for repeated laboratory preparations.
Vₜ = V × n × (1+e/100); V₀ = Cₜ × Vₜ / C₀
Runs in your browser
Discovery source
Your data stays yours
Inputs are processed on this page and are never sent to a server.
About this tool
Use tool ↑Plan stock and diluent volumes for repeated laboratory preparations.
Enter both concentrations in the same unit and convention. Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration. Assumes additive volumes.
- Enter your values
- Stock concentration
- Target concentration (same unit)
- Final volume per preparation
- Preparations / copies
- Extra volume
- Calculation method
Vₜ = V × n × (1+e/100); V₀ = Cₜ × Vₜ / C₀
- Example scenario · Result
Stock to take: 0.011 L Diluent to add: 0.209 L Final mixed volume: 0.22 L
Calculation method
- Enter both concentrations in the same unit and convention.
- Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
- Assumes additive volumes.
Vₜ = V × n × (1+e/100); V₀ = Cₜ × Vₜ / C₀
Laboratory dilution batch planner
- Stock concentration
- 100
- Target concentration (same unit)
- 5
- Final volume per preparation
- 0.02 L
- Preparations / copies
- 10
- Extra volume
- 10 %
Result
Stock to take: 0.011 L Diluent to add: 0.209 L Final mixed volume: 0.22 L
Frequently asked questions
Does this prescribe a safe mixture?
No. It does not check reactions, compatibility or clinical doses; follow your validated laboratory procedure.
Where does my data go?
Calculations run on your device. Form inputs are not sent to a server.
Terms and definitions
Enter your values
- Measurement system
The initial choice follows your browser region. Your choice is remembered on this device. Gallons are US gallons. Switching units keeps your numbers unchanged and interprets them in the new unit.
Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
- Stock concentration
Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
Enter a numerical value for this quantity.
Minimum: 1e-12 · Maximum: 1000000000000
- Target concentration (same unit)
Enter both concentrations in the same unit and convention.
Enter a numerical value for this quantity.
Minimum: 1e-12 · Maximum: 1000000000000
- Final volume per preparation
Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
Enter a numerical value for this quantity. Use the unit shown beside this field. L / US gal
Minimum: 1e-9 · Maximum: 10000000 L
- Preparations / copies
Enter a whole number; fractional counts are not valid.
Minimum: 1 · Maximum: 1000000
- Extra volume
Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
Enter a percentage, not its decimal fraction: 50 means 50%. Use the unit shown beside this field. %
Minimum: 0 · Maximum: 100 %
Result
- Result
Enter both concentrations in the same unit and convention. Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration. Assumes additive volumes.
Calculated from your entries using the method below.
- Stock to take
Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
Calculated from your entries using the method below.
- Diluent to add
Enter both concentrations in the same unit and convention. Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration. Assumes additive volumes.
Calculated from your entries using the method below.
- Final mixed volume
Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration.
Calculated from your entries using the method below.
- Value
Enter both concentrations in the same unit and convention. Total volume includes preparation count and extra allowance; stock volume = target concentration × final volume / stock concentration. Assumes additive volumes.
Calculated from your entries using the method below.
- Unit
Enter both concentrations in the same unit and convention.
Calculated from your entries using the method below.
Common mistakes and quick fixes
Final volume per preparation · Extra volume
Mistake: Changing units and assuming the entered numbers were converted.
Fix: Numbers stay unchanged. Check the new unit and enter the intended measurement, or select an example for that system.
Does this prescribe a safe mixture?
Mistake: Treating a result as valid outside the described scope.
Fix: No. It does not check reactions, compatibility or clinical doses; follow your validated laboratory procedure.
Limits and key assumptions
- No. It does not check reactions, compatibility or clinical doses; follow your validated laboratory procedure.
- Assumes additive volumes.
- Displayed results may be rounded; rounding does not add measurement precision.