CFU calculator
CFU/mL = colonies × dilution / volume plated.
Calculator
How to use
CFU
Standard spread plate sketch.
Educational use only. Biology models are simplified; clinical and field decisions need appropriate expertise and measurement.
CFU/mL = colonies × dilution / volume plated.
Standard spread plate sketch.
Educational use only. Biology models are simplified; clinical and field decisions need appropriate expertise and measurement.
Model / formula
CFU/mL = colonies × dilution / volume plated
Result
CFU/mL ≈ 4.2000e+7