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Concentration Unit Converter

Convert engineering quantities quickly and consistently.

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Manual Conversion Shortcut

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Equivalent Units

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Standard Reference Tables

SI System
SI UnitEquivalent
1 kg/m³1 g/L
1 mol/m³0.001 mol/L (Molarity)
FPS System
FPS UnitEquivalent
1 lb/ft³16.0185 kg/m³
1 lb/US gal119.826 kg/m³
CGS System
CGS / Metric UnitEquivalent
1 g/cm³1,000 kg/m³
1 mg/L≈ 1 ppm (parts per million in water)

Concentration

What is Concentration?

Concentration defines the abundance of a specific constituent divided by the total volume of a mixture. It is the core metric for tracking the purity, toxicity, and chemical makeup of a process stream.

Concentration conversions are strictly required for:

  • Chemical Dosing: Sizing injection skids for corrosion inhibitors, biocides, and demulsifiers.
  • Water Treatment: Tracking effluent purity and dissolved oxygen in parts per million (ppm).
  • Reaction Kinetics: Determining molarity for catalyst design.

Convert rapidly between industrial scale kg/m³ and laboratory scale units like grams per liter (g/L) and milligrams per liter (mg/L).