Enter the molar mass in grams per mole into the calculator to convert it to kilograms per mole. You can also select a common substance for reference, though the conversion factor is the same for any substance.

g/mol to kg Converter

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g/mol → kg/mol
Moles → kg
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▸ How this is calculated

Quick Overview: g/mol to kg/mol

A molar mass in grams per mole can be converted to kilograms per mole using the relationship:

kg/mol = g/mol ÷ 1000

  • 10 g/mol = 0.01 kg/mol
  • 18.015 g/mol = 0.018015 kg/mol
  • 58.44 g/mol = 0.05844 kg/mol
  • 180.16 g/mol = 0.18016 kg/mol

g/mol to kg Formula

The following formula is used to convert a molar mass from grams per mole to kilograms per mole.

kg/mol = (g/mol) / 1000

Variables:

  • kg/mol is the molar mass in kilograms per mole
  • g/mol is the molar mass in grams per mole
  • 1000 is the number of grams in 1 kilogram

To convert g/mol to kg/mol, divide the molar mass value by 1000. The “per mole” part of the unit remains unchanged during the conversion.

What is g/mol to kg/mol Conversion?

Converting g/mol to kg/mol means expressing the same molar mass using kilograms instead of grams. Since 1 kilogram equals 1000 grams, any molar mass written in g/mol becomes a smaller numerical value when written in kg/mol. This is commonly useful in chemistry and engineering when working with SI base units.

For example, water has a molar mass of 18.015 g/mol. In kilograms per mole, this becomes 0.018015 kg/mol. Sodium chloride has a molar mass of 58.44 g/mol, which is equal to 0.05844 kg/mol.

How to Convert g/mol to kg/mol?

The following steps outline how to convert a molar mass from g/mol to kg/mol.


  1. First, determine the molar mass in grams per mole (g/mol).
  2. Next, divide that value by 1000.
  3. The result is the equivalent molar mass in kilograms per mole (kg/mol).
  4. After calculating the result, verify your answer using the converter above.

Example Problem:

Use the following values as an example problem to test your knowledge.

Molar Mass = 58.44 g/mol

Converted Molar Mass = 0.05844 kg/mol

g/mol to kg/mol Conversion Table

The table below lists example molar masses in g/mol for several common substances, along with their equivalent values in kg/mol.

Substance Molar Mass (g/mol) Molar Mass (kg/mol)
Water (H₂O) 18.015 0.018015
Sodium chloride (NaCl) 58.44 0.05844
Glucose (C₆H₁₂O₆) 180.16 0.18016
Ethanol (C₂H₅OH) 46.07 0.04607
Oxygen gas (O₂) 32.00 0.032

In many chemistry references, molar masses are listed in g/mol, while SI-based calculations may use kg/mol. Because the conversion only changes the mass unit, the physical meaning of the molar mass stays exactly the same.