Concentration Converter

Convert between concentration units: mol/L, mmol/L, mg/L, g/L, ppm, ppb, and percent (w/v). Supports molar mass for molarity conversions.

How to Use Concentration Converter

The Concentration Converter transforms values between common solution concentration units. Convert between mol/L (molarity), mmol/L, mg/L, g/L, ppm (parts per million), ppb (parts per billion), and percent (w/v). For conversions involving molarity (mol/L), enter the molar mass of your solute. The tool assumes dilute aqueous solutions where 1 ppm ≈ 1 mg/L. Essential for chemists, environmental scientists, pharmacologists, water quality analysts, and students working with solution concentrations in laboratory or field settings.

Step-by-Step Instructions

  1. Enter the concentration value to convert
  2. Select the source and target units
  3. Enter molar mass if converting to/from mol/L
  4. Click Convert and copy the result

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