Bacterial 10-Fold Serial Dilution Calculator
Plan the classic 10-fold dilution series for plating bacteria and counting CFU.
- 1Each step dilutes 10-fold
overall fold = 10^6 = 1000000 - 2Final concentration = stock ÷ overall fold
100000000 ÷ 1000000 = 100.0
🔒 100% client-side — your data is computed in the browser and never uploaded.
Cite this tool
ToolJolt. Bacterial 10-Fold Serial Dilution Calculator. ToolJolt Chemistry & Lab Tools; 2026. https://tooljolt.comA no-nonsense bacterial 10-fold serial dilution calculator built for solution preparation. It shows the substituted formula, not just the answer, so you can check the working.
About Bacterial 10-Fold Serial Dilution Calculator
Plan the classic 10-fold dilution series for plating bacteria and counting CFU. The calculation uses Cₙ = stock ÷ foldⁿ. Why accuracy here pays off: Getting a concentration right is the difference between a reaction that works and one that quietly fails. Weigh-out and dilution errors are among the most common — and most costly — mistakes at the bench. Mistakes that trip people up: not bringing the solution to its final volume in a volumetric flask; forgetting to account for hydrate water in the molar mass; confusing % w/v with % w/w. No account, no upload, no tracking of your inputs — the result is generated on your machine, which makes it reproducible, private and citable in published work.
How to use Bacterial 10-Fold Serial Dilution Calculator
- 1Enter your values: Stock concentration, Fold per step, Number of steps.
- 2Read the headline result and the supporting figures, which recompute as you type.
- 3Open “Worked example with your numbers” to see the substituted formula step by step.
- 4Copy the result, or use the cite-this-tool snippet for your methods section.
Why use Bacterial 10-Fold Serial Dilution Calculator?
- ✓Mobile-friendly and completely free, with no sign-up or usage caps
- ✓Built on a sourced, unit-tested formula for solution preparation
- ✓Links to related solution preparation calculators so you can finish the whole workflow
- ✓Copy-ready result and a one-line “cite this tool” snippet for your methods section
- ✓Designed for students, chemists and lab technicians who need a trustworthy answer fast
Frequently asked questions
Is this bacterial 10-fold serial dilution calculator free to use?+
Yes. It is completely free, needs no sign-up, and runs entirely in your browser — there are no usage limits.
What formula does it use?+
It uses Cₙ = stock ÷ foldⁿ The full worked example is shown beneath the result so you can verify each step.
What are the most common mistakes here?+
In solution preparation, watch for: forgetting to account for hydrate water in the molar mass; confusing % w/v with % w/w; diluting concentrated acid by adding water to acid instead of acid to water; not bringing the solution to its final volume in a volumetric flask. This tool shows the working so you can catch these before they cost an experiment.
Does my data leave my device?+
No. All computation happens locally in your browser. Nothing you enter — sequences, concentrations or measurements — is uploaded to any server, so it is safe for confidential work.
Can I cite this tool?+
Yes — use the “Cite this tool” snippet on the page. Many users link these calculators from methods sections, lab SOPs and teaching materials.
Related tools
- Boric Acid Molarity Calculator
- How Much D-Glucose to Weigh — Mass Calculator
- How Much Imidazole to Weigh — Mass Calculator
- Prepare 5 M NaCl stock — Sodium Chloride (NaCl) Stock Calculator
- D-Glucose Percent (w/v) Solution Calculator
- Sodium Carbonate Percent (w/v) Solution Calculator
- CFU/mL Calculator — probiotic
Related Chemistry tools
Sodium Chloride (NaCl) Molarity Calculator
Calculate the molarity (mol/L) of a Sodium Chloride (NaCl) solution from the mass you weighed out and your final volume — shows the working and the millimolar value.
● LivePotassium Chloride (KCl) Molarity Calculator
Calculate the molarity (mol/L) of a Potassium Chloride (KCl) solution from the mass you weighed out and your final volume — shows the working and the millimolar value.
● LiveD-Glucose Molarity Calculator
Calculate the molarity (mol/L) of a D-Glucose solution from the mass you weighed out and your final volume — shows the working and the millimolar value.
● Live