Convert between common lab and science units — mass, volume, concentration, temperature, pressure, and length.
Select a category (mass, volume, concentration, etc.), enter a value, and choose your source and target units. All conversions in the selected category are shown below the result for quick reference. Temperature conversions use the correct formulas (not simple multiplication).
Some conversions that trip people up: 1 mg/mL = 1 g/L = 1000 µg/mL = 1000 ppm (in dilute aqueous solutions). 1 M = 1000 mM = 1,000,000 µM. 1 L = 1000 mL = 1,000,000 µL. 1 atm = 101.325 kPa = 760 mmHg = 14.696 psi. 1 nm = 10 Å. 1 Da = 1 g/mol.