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Grams ↔ Moles Converter

Convert between mass and amount of substance using molar mass — enter a formula to look up M automatically, or supply your own.

Calculator

Results update as you type. Every step of the working is shown below.

Examples:

Optional — a formula below takes priority.

Looks up the molar mass automatically.

Result

Enter values above — the answer appears here instantly, with full working.

Formula used

n = m / M · m = n · M

Every result substitutes your values into this relation step by step above.

Assumptions

  • Masses are of pure substance.
  • Standard atomic weights when a formula is supplied.

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