Biology Calculators for Lab Prep, Genetics, Microbiology & Biochemistry

Calculate laboratory concentrations, growth rates, genetics, and gestation dates from supplied measurements. Keep track of the units and the model used, particularly where biological variation makes the answer approximate.

Biology and laboratory calculations

A cell dilution calculation is useful when a target concentration and final volume are known. Before preparing a sample, confirm that the concentration units refer to the same quantity and that the measurement method is appropriate for the cells or material being used.

Microbial growth measurements require comparable time points and a suitable growth phase. A generation time estimated from two counts can be distorted if the culture is no longer growing exponentially or if the counts have large measurement errors. Record the experimental conditions with the result.