PPM to Molarity Calculator

Convert PPM to Molarity

About PPM to Molarity Conversion

Parts per million (PPM) and molarity are different ways to express concentration. PPM is mass-based while molarity is mole-based.

PPM to Molarity:

M = (PPM × 10⁻³) / MW

Molarity to PPM:

PPM = M × MW × 10³

PPB to Molarity:

M = (PPB × 10⁻⁶) / MW

Where:

  • M = Molarity (mol/L)
  • PPM = Parts per million (mg/L)
  • PPB = Parts per billion (μg/L)
  • MW = Molecular weight (g/mol)

Common Applications:

• Water quality analysis
• Environmental monitoring
• Food safety testing
• Pharmaceutical analysis

Conversion Factors:

• 1 PPM = 1 mg/L
• 1 PPB = 1 μg/L
• 1 mg = 10⁻³ g
• 1 μg = 10⁻⁶ g

This conversion is essential in analytical chemistry, environmental science, and quality control applications.

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