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Fluids Converters
Concentration - Solution Converter
Result
... Part per million = ... Milligram per liter
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Part per million to Milligram per liter Converter
Use this page to convert part per million values into milligram per liter, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 ppm = 1 mg/L
1 mg/L = 1 ppm
Example: 0.001 ppm = 0.001 mg/L
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Part per million
One part per million is represented as 0.000001 kilograms per liter in this converter.
History: Parts-per-million notation is common for dilute concentrations where ratios are easier to read.
Current use: Used for water quality, environmental reporting, chemistry, and product concentration limits.
Also written as ppm.
Milligram per liter
One milligram per liter is equal to one millionth of a kilogram per liter (1e-6 kilograms per liter).
History: Milligrams per liter became standard for dilute aqueous concentrations.
Current use: Used for drinking water, wastewater, environmental chemistry, and low-level contaminants.
Also written as mg/L.
Part per million to Milligram per liter table
| Part per million [ppm] | Milligram per liter [mg/L] |
|---|---|
| 0.01 ppm | 0.01 mg/L |
| 0.1 ppm | 0.1 mg/L |
| 1 ppm | 1 mg/L |
| 2 ppm | 2 mg/L |
| 5 ppm | 5 mg/L |
| 10 ppm | 10 mg/L |
| 20 ppm | 20 mg/L |
| 50 ppm | 50 mg/L |
| 100 ppm | 100 mg/L |
Frequently asked questions
How many Milligram per liter (mg/L) are in one Part per million (ppm)?
One Part per million equals 1 Milligram per liter.
How do you convert Part per million to Milligram per liter?
Multiply the Part per million value by 1 to get the result in Milligram per liter.
How do you convert Milligram per liter back to Part per million?
Multiply the Milligram per liter value by 1 to get back to Part per million.
What is 0.001 Part per million in Milligram per liter?
0.001 Part per million equals 0.001 Milligram per liter.