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Mass Concentration
Note 1:
Parts per million (ppm) is a dimensionless notation and, therefore, can only be used as a unit of measure of concentration, equivalent to mg/L, in aqueous solution of low concentration, with density equal to that of water (1000 kg/m3), since in this case one liter of solution has a mass equal to 1000 grams, being 1 mg/L = 1 mg/1000 g = 1 g/1000000 g = 1 ppm. For conversion of ppm to mass/volume concentration units, in solutions with different densities from 1000 kg/m3, fill the calculator field with the solution density value. For more information, see article from Wikipedia.
Descriptions
- Mass concentration - is defined as the mass of a constituent divided by the total volume of a mixture
- kg/m3 - Kilogram per cubic meter
- g/m3 - Gram per cubic meter (1 mg/L)
- mg/m3 - Milligram per cubic meter
- µg/m3 - Microgram per cubic meter
- kg/L - Kilogram per liter
- g/L - Gram per liter (equal to 1 kg/m3)
- g/dL - Gram per decilitre
- mg/L - Milligram per liter (about 1 ppm, see Note 1)
- mg/dL - Milligram per decilitre
- mg/mL - Milligram per millilitre (equal to 1 kg/m3)
- µg/L - Microgram per liter
- µg/dL - Microgram per decilitre
- µg/mL - Microgram per millilitre (equal to 1 mg/L)
- ng/dL - Nanogram per decilitre
- ng/mL - Nanogram per millilitre
- gr/gal (US) - Grain per american gallon
- gr/gal (UK) - Grain per imperial gallon (UK)
- lb/gal (US) - Pound per american gallon
- lb/gal (UK) - Pound per imperial gallon (UK)
- lb/ft3 - Pound per cubic foot
- ppm - Part per million (about 1 mg / L = 1 μg / mL, see Note 1
Instructions
- Enter the value in one of the fields of the "From" column, corresponding to the unit of measurement you want to convert
- Click the "Convert >>" button or hit the "Enter" key
- See converted values in the fields of the "To" column, for the indicated units of measurement
- To convert ppm to Mass/Volume concentration units, for solutions with densities different from 1000 kg/m3, fill the calculator field with the density of the solution
- If some fields have 0 (zero) as value, with yellow background, it means that the rounding of the results "truncated" the number. In this case increase the maximum number of decimal places defined or uncheck the option to set the maximum number of decimal places
- Very small results may possibly be presented in Scientific Notation (e.g, 5.43e-8, corresponds to 5.43 x 10-8, which is equal to 0.0000000543)
- To change format of the results use the various formatting options in the Configurations Area
- To exclude from the results the units of measurement you do not want to convert, select the corresponding check box(es) in the exclusion column (
) - To transfer a result to one of the temporary memories of WebCalc, select the result to be transferred ("Memo" column), select the memory and the type of operation, and click the "Transfer >>" button
- Click the "Print" button to open the impression page