Enter the total mass (grams) and the total number of moles into the Calculator. The calculator will evaluate the Gram Per Mole. 

Gram Per Mole Formula

G:M = M / m


  • G:M is the Gram Per Mole (g/mole)
  • M is the total mass (grams)
  • m is the total number of moles

To calculate Gram Per Mole, divide the mass in grams by the number of moles of substance.

How to Calculate Gram Per Mole?

The following steps outline how to calculate the Gram Per Mole.

  1. First, determine the total mass (grams). 
  2. Next, determine the total number of moles. 
  3. Next, gather the formula from above = G:M = M / m.
  4. Finally, calculate the Gram Per Mole.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

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

total mass (grams) = 70

total number of moles = 4