Water (H₂O)
Mass (grams): 18.015 grams; Molecular Weight (g/mol): 18.015 g/mol
Number of Moles: 1 mol
Grams to Moles Calculator
Chemistry0.0(0)
Calculates the number of moles in a given mass of a substance using its molecular weight.
More tools:Science & Lab Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Mass (grams) and Molecular Weight (g/mol) in the units shown.
Step 2
Read Number of Moles in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Sodium Chloride (NaCl)
Mass (grams): 58.44 grams; Molecular Weight (g/mol): 58.44 g/mol
Number of Moles: 1 mol
Glucose (C₆H₁₂O₆)
Mass (grams): 180.16 grams; Molecular Weight (g/mol): 180.16 g/mol
Number of Moles: 1 mol
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