basic

Mole-Mass Conversion Calculator

Convert between grams and moles for any compound.

Convert between mass (grams) and amount (moles) of a substance using its molar mass: n = m / M and m = n · M. Also reports the number of formula units (× Nₐ).

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, particles = n · 6.022 × 10²³.

In depth

Convert between mass (grams) and amount (moles) of a substance using its molar mass: n = m / M and m = n · M. Also reports the number of formula units (× Nₐ).