Molarity Calculator

Calculate molarity (molar concentration) for solution preparation in chemistry labs. Find moles, volume, or concentration.

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About This Calculator

Calculate molarity for preparing chemical solutions. Molarity (M) is the number of moles of solute per liter of solution—the most common concentration unit in chemistry.

🧮 Molarity Formula

Molarity (M):
M = n / V

Where: M = Molarity (mol/L), n = moles of solute, V = volume in liters

📊 Common Molarities

Solution	Typical M
Conc. HCl	12 M
Conc. H₂SO₄	18 M
Lab NaOH	1-6 M
Saline (0.9%)	0.154 M

💡 Lab Tips

Volumetric flask: Always use for accurate molarity
Add solute first: Then add solvent to final volume
Temperature matters: Volume changes with temperature
Record everything: Label solutions with date and concentration

🔗 Related Calculators

🧪 Dilution Calculator

Calculate dilutions (C1V1=C2V2)

⚗️ Molecular Weight

Calculate molar mass

? Frequently Asked Questions

How accurate is this

This calculator uses standard formulas and provides accurate results for typical use cases. For professional or critical applications, always verify results with certified professionals or official sources.

Is this calculator free to use?

Yes, this Molarity Calculator • Chemistry • Calculator is completely free to use with no registration required. You can use it as many times as needed without any limitations.

Can I use this on mobile devices?

Absolutely! This calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers.

How do I interpret the results?

The results are displayed clearly with appropriate units. Refer to the "About This Calculator" section for detailed information.