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Molarity Calculator

Calculate molarity, moles, molecular weight, and volume

Formula: M = n / V
Molarity (M) = Moles (n) / Volume in Liters (V)
Concentration in mol/L
Amount of substance in mol
Volume of solution
Mass of solute in grams

About Molarity Calculator

Our molarity calculator is a powerful tool designed for chemistry students, researchers, and professionals who need to calculate solution concentrations quickly and accurately. Molarity is one of the most important concepts in chemistry, representing the concentration of a solution.

What is Molarity?

Molarity (M) is defined as the number of moles of solute dissolved in one liter of solution. It's expressed in units of mol/L or simply M. This measurement is crucial for preparing solutions with precise concentrations in laboratory settings.

How to Use This Calculator

  1. Enter Known Values: Input any two of the three values (molarity, moles, or volume)
  2. Choose Units: Select appropriate units (L or mL for volume)
  3. Optional Mass: If you know the mass of solute, enter it for additional calculations
  4. Calculate: Click "Calculate" to get your results
  5. View Results: The calculator will show the missing value(s) and provide step-by-step calculations

Key Features

✓ Multiple Calculations

Calculate molarity, moles, volume, or molecular weight

✓ Unit Conversion

Automatic conversion between L and mL

✓ Step-by-Step

Clear calculation steps and explanations

✓ Mobile Friendly

Works perfectly on all devices

Common Applications

Tip: Always double-check your units and ensure you're using the correct molecular weight when working with mass calculations. Remember that molarity changes with temperature as solution volume can expand or contract.