Estimates colony-forming units per mL from a plated colony count.

Calculates the dilution factor from initial and final volumes (or concentrations).

Calculates the resulting concentration after a single dilution step.

Calculates the overall dilution factor from multiple serial dilution steps.

Calculates the concentration after a documented dilution factor; useful for serial-dilution laboratory workflows.

Estimates CFU/mL when multiple plates from the same dilution are pooled, using total colonies and total plated volume.