Plaque Assay Calculator
Calculate PFU/mL (Plaque Forming Units) from plaque counts and dilution factors. Multi-dilution step averaging.
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VIRUS TITER
—PFU/mL
FORMULA
PFU/mL = Plaque count ÷ (Dilution factor × Volume in mL)
Count plaques in the 10–100 range for accuracy. Use duplicate or triplicate plates per dilution. Ensure complete adsorption before overlay.