Bio laboratory Calculators
In Biology
Bacterial Growth Calculator
Exponential projection is honest only inside the log phase, and cultures leave it.
Cell Doubling Time Calculator
Two counts and the time between them is all it takes — but only within the log phase.
DNA Concentration Calculator
One absorbance unit is 50 µg/mL for DNA, 40 for RNA, 33 for single-stranded.
Log Reduction Calculator
Each log removes 90 percent of what is left — no number of logs ever reaches zero.