Colony Forming Unit of Bacteria Solution

STEP 0: Pre-Calculation Summary
Formula Used
Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate
CFU = (nc*DF)/vc
This formula uses 4 Variables
Variables Used
Colony Forming Unit per ml - (Measured in Cells per Cubic meter) - Colony Forming Unit per ml is a measure of viable bacterial or fungal cells. In direct microscopic counts (cell counting using haemocytometer) where all cells, dead and living, are counted.
No. of Colonies - No. of Colonies is a group of bacteria, fungi, and other microorganisms grown on a solid agar medium.
Dilution Factor - Dilution Factor is the factor by which the stock solution is diluted.
Volume of Culture Plate - (Measured in Cubic Meter) - Volume of Culture Plate is the the amount of a substance occupying a particular volume of culture plate.
STEP 1: Convert Input(s) to Base Unit
No. of Colonies: 9 --> No Conversion Required
Dilution Factor: 7 --> No Conversion Required
Volume of Culture Plate: 10 Cubic Meter --> 10 Cubic Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
CFU = (nc*DF)/vc --> (9*7)/10
Evaluating ... ...
CFU = 6.3
STEP 3: Convert Result to Output's Unit
6.3 Cells per Cubic meter -->0.0063 Cells per Liter (Check conversion here)
FINAL ANSWER
0.0063 Cells per Liter <-- Colony Forming Unit per ml
(Calculation completed in 00.004 seconds)

Credits

Created by Soupayan banerjee
National University of Judicial Science (NUJS), Kolkata
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8 Bacteriology Calculators

Growth Rate Constant of Bacteria
Go Growth Rate Constant = log2(No. of Bacteria at time t/Initial No. of Bacteria)/Time for bacteria
No. of Bacteria at Time T
Go No. of Bacteria at time t = (2^(Growth Rate Constant*Time for bacteria))*Initial No. of Bacteria
Volume of Culture Plate of Bacteria
Go Volume of Culture Plate = (No. of Colonies*Dilution Factor)/Colony Forming Unit per ml
Colony Forming Unit of Bacteria
Go Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate
Dilution Factor of Bacteria
Go Dilution Factor = (Colony Forming Unit per ml*Volume of Culture Plate)/No. of Colonies
No. of Colonies of Bacteria
Go No. of Colonies = (Colony Forming Unit per ml*Volume of Culture Plate)/Dilution Factor
No. of Generation using Generation Time for Bacteria
Go No. of Generation = Time for bacteria/Generation time
Growth Rate of Bacteria
Go Generation time = Time for bacteria/No. of Generation

Colony Forming Unit of Bacteria Formula

Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate
CFU = (nc*DF)/vc

What is CFU?

A colony forming unit, or CFU, is a unit commonly used to estimate the concentration of microorganisms in a test sample. The number of visible colonies (CFU) present on an agar plate can be multiplied by the dilution factor to provide a CFU/ml result.

How to Calculate Colony Forming Unit of Bacteria?

Colony Forming Unit of Bacteria calculator uses Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate to calculate the Colony Forming Unit per ml, The Colony Forming Unit of Bacteria formula is defined as the measure of viable bacterial or fungal cells. CFU measures only viable cells. Colony Forming Unit per ml is denoted by CFU symbol.

How to calculate Colony Forming Unit of Bacteria using this online calculator? To use this online calculator for Colony Forming Unit of Bacteria, enter No. of Colonies (nc), Dilution Factor (DF) & Volume of Culture Plate (vc) and hit the calculate button. Here is how the Colony Forming Unit of Bacteria calculation can be explained with given input values -> 6.3E-6 = (9*7)/10.

FAQ

What is Colony Forming Unit of Bacteria?
The Colony Forming Unit of Bacteria formula is defined as the measure of viable bacterial or fungal cells. CFU measures only viable cells and is represented as CFU = (nc*DF)/vc or Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate. No. of Colonies is a group of bacteria, fungi, and other microorganisms grown on a solid agar medium, Dilution Factor is the factor by which the stock solution is diluted & Volume of Culture Plate is the the amount of a substance occupying a particular volume of culture plate.
How to calculate Colony Forming Unit of Bacteria?
The Colony Forming Unit of Bacteria formula is defined as the measure of viable bacterial or fungal cells. CFU measures only viable cells is calculated using Colony Forming Unit per ml = (No. of Colonies*Dilution Factor)/Volume of Culture Plate. To calculate Colony Forming Unit of Bacteria, you need No. of Colonies (nc), Dilution Factor (DF) & Volume of Culture Plate (vc). With our tool, you need to enter the respective value for No. of Colonies, Dilution Factor & Volume of Culture Plate and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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