Solution Concentration Converter
Solution concentration expresses how much solute is dissolved in a given volume. Water chemistry uses milligrams per liter and parts per million interchangeably, US water-hardness reports use grains per gallon, and industrial dosing uses pounds per gallon or pounds per million gallons.
11 units supported Base unit kilogram per liter (kg/L)
Milligrams per Liter and Parts per Million are the same size, so the value does not change. How this is calculated
About solution concentration conversion
Solution Concentration conversion is commonly needed when water treatment, hardness testing, and chemical dosing. For dilute water solutions a part per million equals a milligram per litre, because a litre of water weighs a kilogram.
Convert Milligram per Liter to other solution concentration units
1 mg/L expressed in every other solution concentration unit on this site.
- Kilogram per Liter kg/L 0.000001
- Gram per Liter g/L 0.001
- Milligram per Liter mg/L 1
- Part per Million ppm 1
- Grain per Gallon (US) gr/gal (US) 0.058417831
- Grain per Gallon (UK) gr/gal (UK) 0.07015689
- Pound per Gallon (US) lb/gal (US) 0.0000083454045
- Pound per Gallon (UK) lb/gal (UK) 0.000010022413
- Pound per Million Gallons (US) lb/Mgal (US) 8.3454045
- Pound per Million Gallons (UK) lb/Mgal (UK) 10.022413
- Pound per Cubic Foot lb/ft³ 0.000062427961
Complete list of solution concentration units
All 11 units this converter supports, each stated against the kilogram per liter (kg/L).
| Unit | Symbol | System | In kilograms per liter | Conversions |
|---|---|---|---|---|
| Kilogram per Liter | kg/L | SI | base unit (kg/L) | — |
| Gram per Liter | g/L | Metric | 1 g/L = 0.001 kg/L | — |
| Milligram per Liter | mg/L | Metric | 1 mg/L = 0.000001 kg/L | — |
| Part per Million | ppm | Other | 1 ppm = 0.000001 kg/L | — |
| Grain per Gallon (US) | gr/gal (US) | US | 1 gr/gal (US) = 0.0000171180610453 kg/L | — |
| Grain per Gallon (UK) | gr/gal (UK) | Imperial | 1 gr/gal (UK) = 0.0000142537675233 kg/L | — |
| Pound per Gallon (US) | lb/gal (US) | US | 1 lb/gal (US) = 0.119826427317 kg/L | — |
| Pound per Gallon (UK) | lb/gal (UK) | Imperial | 1 lb/gal (UK) = 0.0997763726631 kg/L | — |
| Pound per Million Gallons (US) | lb/Mgal (US) | US | 1 lb/Mgal (US) = 1.19826427317e-7 kg/L | — |
| Pound per Million Gallons (UK) | lb/Mgal (UK) | Imperial | 1 lb/Mgal (UK) = 9.97763726631e-8 kg/L | — |
| Pound per Cubic Foot | lb/ft³ | Imperial | 1 lb/ft³ = 0.016018463374 kg/L | — |
No unit in this category matches that search.
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Frequently asked questions
What is the base unit for solution concentration?
Solution Concentration conversions on this site are calculated against the kilogram per liter (kg/L).
Which solution concentration units can I convert?
You can convert between 11 units, including kilogram per liter, gram per liter, milligram per liter, part per million, and more.
Where is solution concentration conversion useful?
It is commonly needed when water treatment, hardness testing, and chemical dosing.
Does this converter mix measurement systems?
The converter supports SI, Metric, Other, US, Imperial units and keeps their exact definitions separate so results stay accurate.
Related categories
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.