Molarity Calculator
Solution molarity from moles or mass of solute.
Enter your values
ⓘ Live results
Results
- Molarity
- 1 mol/L
- Moles of solute
- 1 mol
- Concentration
- 1 M
Quick answer
Molarity M = moles of solute / litres of solution.
M = n/V
How to use the Molarity Calculator
- 1Enter the mass of solute dissolved and its molar mass.
- 2Enter the total volume of the resulting solution in litres.
- 3Read the molarity in mol/L (M).
Worked example
Using the values the calculator loads with:
Inputs
- Solute mass58.44 g
- Molar mass58.44 g/mol
- Solution volume1 L
Results
- Molarity1 mol/L
- Moles of solute1 mol
- Concentration1 M
Frequently asked questions
What if I already know moles, not mass?
Divide moles directly by volume in litres to get molarity, skipping the mass-to-moles step.
Does temperature affect molarity?
Yes slightly, since solution volume can change with temperature; molality is often preferred when precision matters.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.