Laboratory calculators

Dilutions, molarity, buffers and reagent maths for the bench.

Molarity calculator
Convert between mass, molar concentration and volume for a solution.
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Molecular weight calculator
Compute molar mass from a chemical formula, including hydrates.
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Dilution calculator
Work out how much stock and diluent to combine for a target concentration.
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Serial dilution calculator
Plan a dilution series and get the transfer volume for every step.
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Buffer preparation calculatorPlanned
Calculate component masses for a buffer at a chosen pH and strength.
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