Catalogue for scientific research only

Laboratory calculator

Quick calculations for preparing laboratory solutions. Results are rounded: always check your calculations and follow your laboratory’s procedures.

Concentration of a solution

Mass of powder dissolved in a volume of solvent.

Concentration— mg/ml
Same, per microlitre— µg/µl
Molar concentration— mmol/l

Dilution (C1 × V1 = C2 × V2)

Volume of stock solution needed to reach a final concentration.

Stock to use (V1)— ml
Same, in microlitres— µl
Solvent to add— ml

Molarity

Mass to weigh for a solution of a given molarity.

Mass to weigh— mg
Resulting concentration— mg/ml

Tool for laboratory solution preparation only. It does not provide, and must not be used to work out, doses for humans or animals.

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