Molecular Biology
Protein Molarity Calculator
Convert between mass and moles for proteins. Includes weight↔mole, molar concentration, and molecule count.
DNA / RNA Molecular Weight
Calculate the molecular weight of oligonucleotides and polynucleotides from sequence.
OD₆₀₀ → Cell Density
Convert optical density readings to approximate cell counts and CFU/mL for common organisms.
Serial Dilution Calculator
Plan serial dilutions with any dilution factor. Get volumes for each step automatically.
General Chemistry
Buffer & pH Calculator
Henderson–Hasselbalch based buffer preparation. Calculate ratios and volumes for any target pH.
Solution Molarity
Calculate molarity, moles, mass, or volume from any three known quantities for general solutions.
Lab Unit Converter
Convert between common lab units — mass, volume, temperature, pressure, concentration — in one place.