Solution Concentration Converter

💧 Convert between solution concentration units with precision and ease. Your ultimate chemistry companion for accurate concentration calculations! 🌊

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Enter a value to see the result
Common Conversions
Quick access to frequently used conversions
Unit Information

percentage

Unit measurements

%
percentage
Percentage
Base unit of solution concentration
% (w/w)
percentage
Percentage Weight/Weight
Percentage by weight/weight
% (v/v)
percentage
Percentage Volume/Volume
Percentage by volume/volume
% (w/v)
percentage
Percentage Weight/Volume
Percentage by weight/volume

parts_per

Unit measurements

ppm
parts_per
Parts Per Million
Parts per million (1 in 1,000,000)
ppb
parts_per
Parts Per Billion
Parts per billion (1 in 1,000,000,000)
ppt
parts_per
Parts Per Trillion
Parts per trillion (1 in 1,000,000,000,000)
ppq
parts_per
Parts Per Quadrillion
Parts per quadrillion (1 in 1,000,000,000,000,000)

mass_per_volume

Unit measurements

mg/L
mass_per_volume
Milligram per Liter
Milligram per liter (for dilute aqueous solutions ≈ ppm)
g/L
mass_per_volume
Gram per Liter
Gram per liter
μg/L
mass_per_volume
Microgram per Liter
Microgram per liter (≈ ppb for dilute solutions)
ng/L
mass_per_volume
Nanogram per Liter
Nanogram per liter (≈ ppt for dilute solutions)

Practical Units

Commonly used units in practical applications

g/kg
practical
Gram per Kilogram
Gram per kilogram (same as % for dilute solutions)
mg/kg
practical
Milligram per Kilogram
Milligram per kilogram (≈ ppm)
μg/kg
practical
Microgram per Kilogram
Microgram per kilogram (≈ ppb)
mol/L
practical
Mole per Liter
Molar concentration (molarity)
Preferences

Solution Concentration Converter

Our Solution Concentration Converter provides accurate conversions between various units of solution concentration measurement. Convert ppm to g/L (for dilute aqueous solutions 1 ppm ≈ 1 mg/L), use 1 ppm = 1000 ppb for ppm to ppb, or work with percentages, parts per million, parts per billion, mg/L, g/L and more. This tool delivers precise results instantly. No sign-up required.

Key Units

  • % (percent): Mass or volume fraction per hundred; common for solutions and mixtures.
  • ppm (parts per million): One part per million; for trace concentrations (e.g. water quality, pollutants).
  • ppb (parts per billion): One part per billion; for very low concentrations (1 ppm = 1000 ppb).
  • g/L (grams per liter): Mass concentration; grams of solute per liter of solution.
  • mg/L (milligrams per liter): Equivalent to ppm for dilute aqueous solutions; widely used in environmental and lab work.
  • mol/L (molarity): Moles of solute per liter of solution; standard in chemistry.

Supported Unit Categories:

  • Percentage Units: %, % (w/w), % (v/v), % (w/v)
  • Parts Per Units: ppm, ppb, ppt, ppq
  • Mass Per Volume: mg/L, g/L, μg/L, ng/L
  • Practical Units: g/kg, mg/kg, μg/kg, mol/L

Common conversions: ppm to g/L, 1 ppm = ppb

  • ppm to g/L: 1 ppm ≈ 1 mg/L (dilute aqueous); 1 g/L = 1000 mg/L = 1000 ppm
  • 1 ppm = 1000 ppb (1 ppm = ppb scale: 1 ppb = 0.001 ppm)
  • 1% = 10,000 ppm
  • 1 ppm = 0.0001%

How to Use:

  1. Enter the value you want to convert in the input field
  2. Select the source unit from the "From" dropdown
  3. Select the target unit from the "To" dropdown
  4. View the converted result instantly
  5. Use the swap button to quickly reverse the conversion

Applications:

This solution concentration converter is useful for chemists, environmental scientists, researchers, students, and anyone working with chemistry, environmental analysis, water quality testing, and industrial processes. It's particularly helpful for laboratory work, environmental monitoring, quality control, and understanding solution compositions.

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Added Nov 30, 2025

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