Moles Calculator
Find moles from mass and molar mass.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator applies the basic stoichiometry relationship n = mass ÷ molar mass, where molar mass (in g/mol) comes from summing the atomic weights of every atom in the compound's formula.
It's used by chemistry students converting between grams and moles for lab reports, lab technicians preparing solutions of a specific molarity, and pharmacy or manufacturing staff calculating reagent quantities for a recipe or synthesis.
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