Normality Calculator Formula

Understand the math behind the normality calculator. Each variable explained with a worked example.

Use the Normality Calculator

Formulas Used

Normality

normality = molarity * n_factor

Variables

VariableDescriptionDefault
molarityMolarity(M)1
n_factorEquivalence Factor (n)2

How It Works

How to Calculate Normality

Formula

N = M × n

Where:

  • N = normality (equivalents/L)
  • M = molarity
  • n = equivalence factor (H+ for acids, OH- for bases, electrons for redox)

    • Worked Example

    Find the normality of 1 M H2SO4 (diprotic acid, n = 2).

    molarity = 1n_factor = 2
    1. 01N = M × n
    2. 02N = 1 × 2
    3. 03N = 2 N

    Ready to run the numbers?

    Open Normality Calculator