About This Calculator
The mol/L to mg/L Calculator is a laboratory tool used to convert between molar concentration (mol/L) and mass concentration (mg/L). This is essential in chemical, biochemical, and clinical labs where solutions are expressed in different units. The calculator supports direct input of molar mass and also provides a list of common substances for convenience.
How It Works
- Select the conversion direction: mol/L to mg/L or mg/L to mol/L.
- Enter the input concentration value.
- Choose a substance from the dropdown to auto-fill the molar mass or manually enter your own.
- The calculator uses the selected molar mass to compute the equivalent concentration.
Frequently Asked Questions
What is mol/L?
Molarity (mol/L) is a unit of concentration representing the number of moles of solute per liter of solution.
What is mg/L?
Milligrams per liter (mg/L) measures the mass of solute in one liter of solution. It’s commonly used in water quality, biology, and clinical chemistry.
Why is molar mass required?
To convert between molar and mass concentration, the molecular weight (in g/mol) of the substance is essential for accurate results.
Can I enter a custom substance?
Yes. You can manually enter any molar mass in g/mol if your substance is not listed in the dropdown.
Is the conversion direction reversible?
Yes. The tool supports both mol/L to mg/L and mg/L to mol/L with a simple dropdown selector.