Normality to Molarity Calculator

Convert between normality and molarity with ease

Normality ↔ Molarity Calculator

Calculate conversions with ease

Normality to Molarity

N → M

Molarity to Normality

M → N

Result

Normality to Molarity Calculator

This calculator helps you convert between normality (N) and molarity (M) of a solution. Normality is the number of gram equivalents per liter of solution, while molarity is the number of moles per liter.

How to Use This Calculator

  1. Select the conversion direction (N→M or M→N)
  2. Enter the value you want to convert
  3. Enter the equivalent factor (n-factor)
  4. Click the calculate button to get your result

Formula

Molarity (M) = Normality (N) / n

Normality (N) = Molarity (M) × n

Where:

  • n is the equivalent factor (n-factor)
  • The n-factor depends on the reaction type:
    • For acids: number of H⁺ ions provided per molecule
    • For bases: number of OH⁻ ions provided per molecule
    • For salts: total charge on cation or anion
    • For redox reactions: number of electrons transferred

Example Calculation

Normality to Molarity: If you have a 0.6 N H₂SO₄ solution:

n-factor for H₂SO₄ (acid) = 2 (provides 2 H⁺ ions)

Molarity = Normality / n = 0.6 / 2 = 0.3 M

Molarity to Normality: If you have a 0.5 M Ca(OH)₂ solution:

n-factor for Ca(OH)₂ (base) = 2 (provides 2 OH⁻ ions)

Normality = Molarity × n = 0.5 × 2 = 1.0 N

Key Differences

  • Molarity is the number of moles of solute per liter of solution
  • Normality is the number of gram equivalents of solute per liter of solution
  • Normality depends on the chemical reaction being studied
  • Molarity is independent of the reaction