About This Calculator
This mmol to grams calculator helps convert an amount in millimoles (mmol) to mass in grams (g) using the substance's molar mass. It is useful in chemistry, medicine, and biology where concentration and quantity measurements are required.
How It Works
- Enter the quantity in millimoles (mmol).
- Enter the molar mass of the substance in grams per mole (g/mol).
- The calculator applies the formula:
grams = mmol × molar mass / 1000. - The result is displayed in grams (g).
Grams =
mmol × Molar Mass (g/mol)1000
You must know the exact molar mass of the compound for accurate results.
Frequently Asked Questions
What is mmol?
mmol stands for millimole, which is 1/1000th of a mole, a standard unit for amount of substance in chemistry.
How do you convert mmol to grams?
Multiply the mmol value by the molar mass of the substance and divide by 1000.
Why divide by 1000 in the formula?
Because molar mass is in g/mol and mmol is 1/1000 of a mole, dividing by 1000 normalizes the units.
What if I only have grams and want mmol?
You can reverse the formula: mmol = grams × 1000 / molar mass.
Can this be used for all substances?
Yes, as long as you know the accurate molar mass of the substance.