basic

Grams to Moles Conversion Calculator

n = m / M, moles from mass and molar mass.

Convert a sample mass in grams into the corresponding number of moles using the molar mass: n = m / M. Reports the result in moles and millimoles.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

g
g/mol

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

n = m / M

In depth

Convert a sample mass in grams into the corresponding number of moles using the molar mass: n = m / M. Reports the result in moles and millimoles.