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Molarity Calculator

Calculate molarity, moles, volume, or mass of a solution.

Result

Molarity Calculator Guide

What is Molarity?

Molarity (M) is a measure of the concentration of a solute in a solution. It is defined as the number of moles of solute per liter of solution.

Key Formulas

Molarity (M) = moles of solute ÷ liters of solution

Moles = Molarity × Volume (L)
Volume (L) = Moles ÷ Molarity
Mass (g) = Moles × Molar Mass (g/mol)

How to Use This Calculator

  1. Select what you want to calculate.
  2. Enter the known values.
  3. Click "Calculate" to see the result.

Important Notes

  • Always use consistent units (convert mL to L when necessary).
  • Molarity is temperature-dependent because volume changes with temperature.
  • For very dilute solutions, consider using molality instead.