Dilution Factor Calculator for CFU/mL

Calculate Dilution Factor (CFU/mL)



Formula

The formula to calculate the Dilution Factor (D) is:

\[ D = \frac{\text{CFU/mL}}{N} \]

Where:

What is Dilution Factor?

The dilution factor is a measure used in microbiology to estimate the concentration of microorganisms in a sample. It is the ratio of the concentration of bacteria (CFU/mL) to the number of colonies counted (N). This value helps in understanding the level of contamination or the efficiency of bacterial growth under various conditions.

Example Calculation

Let's assume the following values:

Using the formula to calculate the dilution factor:

\[ D = \frac{150,000}{150} = 1000 \]

The dilution factor is 1000.