Calculators
The math
before the experiment.
The calculators you use at the desk, right in your browser. Same calculations as the Lab.hacks app, every result can be printed or shared as a link.
Dilution
How much stock goes into your final volume. C1·V1 = C2·V2 for molar, mass, X and percent.
Use it for working solutions, 10X stocks and antibiotic plates.
Mass / Molarity
How much to weigh in from molecular mass, volume and concentration. With a fix if you added too much.
Use it for weighing in salts, sugars and buffer substances.
Molecular weight
Type a formula or tap the periodic table. Takes the result straight into Mass / Molarity.
Use it when the bottle label is missing the molar mass.
Centrifuge RPM ↔ RCF
Convert between RPM and RCF with your rotor radius.
Use it when the protocol says ×g and your centrifuge shows RPM.
Concentration Equalizer
Bring a whole set of samples to one concentration. Paste values, get sample and diluent per tube, download a CSV.
Use it after the NanoDrop or plate reader, before qPCR or a library prep.